February 2022 - tbb-commits - lists.torproject.org

[tor-browser/tor-browser-91.6.0esr-11.5-1] Bug 18800: Remove localhost DNS lookup in nsProfileLock.cpp
by richard＠torproject.org 09 Feb '22

09 Feb '22

commit 0dfdc4674d30ff19b6bc4101d99c51563df21bc3 Author: Kathy Brade <brade(a)pearlcrescent.com> Date: Thu Apr 21 10:40:26 2016 -0400 Bug 18800: Remove localhost DNS lookup in nsProfileLock.cpp Instead of using the local computer's IP address within symlink-based profile lock signatures, always use 127.0.0.1. --- toolkit/profile/nsProfileLock.cpp | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/toolkit/profile/nsProfileLock.cpp b/toolkit/profile/nsProfileLock.cpp index 28d38c11684e..a1b3edc54a05 100644 --- a/toolkit/profile/nsProfileLock.cpp +++ b/toolkit/profile/nsProfileLock.cpp @@ -304,18 +304,17 @@ nsresult nsProfileLock::LockWithSymlink(nsIFile* aLockFile, if (!mReplacedLockTime) aLockFile->GetLastModifiedTimeOfLink(&mReplacedLockTime); + // For Tor Browser, avoid a DNS lookup here so the Tor network is not + // bypassed. Instead, always use 127.0.0.1 for the IP address portion + // of the lock signature, which may cause the browser to refuse to + // start in the rare event that all of the following conditions are met: + // 1. The browser profile is on a network file system. + // 2. The file system does not support fcntl() locking. + // 3. Tor Browser is run from two different computers at the same time. + struct in_addr inaddr; inaddr.s_addr = htonl(INADDR_LOOPBACK); - char hostname[256]; - PRStatus status = PR_GetSystemInfo(PR_SI_HOSTNAME, hostname, sizeof hostname); - if (status == PR_SUCCESS) { - char netdbbuf[PR_NETDB_BUF_SIZE]; - PRHostEnt hostent; - status = PR_GetHostByName(hostname, netdbbuf, sizeof netdbbuf, &hostent); - if (status == PR_SUCCESS) memcpy(&inaddr, hostent.h_addr, sizeof inaddr); - } - mozilla::SmprintfPointer signature = mozilla::Smprintf("%s:%s%lu", inet_ntoa(inaddr), aHaveFcntlLock ? "+" : "", (unsigned long)getpid());

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[tor-browser/tor-browser-91.6.0esr-11.5-1] Bug 16620: Clear window.name when no referrer sent
by richard＠torproject.org 09 Feb '22

09 Feb '22

commit 2e41837dcbbee9e8f66cbc09a25883f4402cb4bb Author: Kathy Brade <brade(a)pearlcrescent.com> Date: Fri Oct 30 14:28:13 2015 -0400 Bug 16620: Clear window.name when no referrer sent Convert JS implementation (within Torbutton) to a C++ browser patch. --- docshell/base/nsDocShell.cpp | 60 +++++++ docshell/test/mochitest/mochitest.ini | 5 + docshell/test/mochitest/test_tor_bug16620.html | 211 +++++++++++++++++++++++++ docshell/test/mochitest/tor_bug16620.html | 51 ++++++ docshell/test/mochitest/tor_bug16620_form.html | 51 ++++++ modules/libpref/init/StaticPrefList.yaml | 2 +- 6 files changed, 379 insertions(+), 1 deletion(-) diff --git a/docshell/base/nsDocShell.cpp b/docshell/base/nsDocShell.cpp index c04a496bdf07..04961ae2d9e0 100644 --- a/docshell/base/nsDocShell.cpp +++ b/docshell/base/nsDocShell.cpp @@ -7672,11 +7672,71 @@ nsresult nsDocShell::CreateContentViewer(const nsACString& aContentType, aOpenedChannel->GetURI(getter_AddRefs(mLoadingURI)); } FirePageHideNotification(!mSavingOldViewer); + if (mIsBeingDestroyed) { // Force to stop the newly created orphaned viewer. viewer->Stop(); return NS_ERROR_DOCSHELL_DYING; } + + // Tor bug 16620: Clear window.name of top-level documents if + // there is no referrer. We make an exception for new windows, + // e.g., window.open(url, "MyName"). + bool isNewWindowTarget = false; + nsCOMPtr<nsIPropertyBag2> props(do_QueryInterface(aRequest, &rv)); + if (props) { + props->GetPropertyAsBool(u"docshell.newWindowTarget"_ns, + &isNewWindowTarget); + } + + if (!isNewWindowTarget) { + nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(aOpenedChannel)); + nsCOMPtr<nsIURI> httpReferrer; + if (httpChannel) { + nsCOMPtr<nsIReferrerInfo> referrerInfo; + rv = httpChannel->GetReferrerInfo(getter_AddRefs(referrerInfo)); + NS_ENSURE_SUCCESS(rv, rv); + if (referrerInfo) { + // We want GetComputedReferrer() instead of GetOriginalReferrer(), since + // the former takes into consideration referrer policy, protocol + // whitelisting... + httpReferrer = referrerInfo->GetComputedReferrer(); + } + } + + bool isTopFrame = mBrowsingContext->IsTop(); + +#ifdef DEBUG_WINDOW_NAME + printf("DOCSHELL %p CreateContentViewer - possibly clearing window.name:\n", + this); + printf(" current window.name: \"%s\"\n", + NS_ConvertUTF16toUTF8(mName).get()); + + nsAutoCString curSpec, loadingSpec; + if (this->mCurrentURI) mCurrentURI->GetSpec(curSpec); + if (mLoadingURI) mLoadingURI->GetSpec(loadingSpec); + printf(" current URI: %s\n", curSpec.get()); + printf(" loading URI: %s\n", loadingSpec.get()); + printf(" is top document: %s\n", isTopFrame ? "Yes" : "No"); + + if (!httpReferrer) { + printf(" referrer: None\n"); + } else { + nsAutoCString refSpec; + httpReferrer->GetSpec(refSpec); + printf(" referrer: %s\n", refSpec.get()); + } +#endif + + bool clearName = isTopFrame && !httpReferrer; + if (clearName) SetName(u""_ns); + +#ifdef DEBUG_WINDOW_NAME + printf(" action taken: %s window.name\n", + clearName ? "Cleared" : "Preserved"); +#endif + } + mLoadingURI = nullptr; // Set mFiredUnloadEvent = false so that the unload handler for the diff --git a/docshell/test/mochitest/mochitest.ini b/docshell/test/mochitest/mochitest.ini index cea63f080117..efc991ef1eee 100644 --- a/docshell/test/mochitest/mochitest.ini +++ b/docshell/test/mochitest/mochitest.ini @@ -53,6 +53,10 @@ support-files = start_historyframe.html url1_historyframe.html url2_historyframe.html + tor_bug16620.html + tor_bug16620_form.html +prefs = + gfx.font_rendering.fallback.async=false [test_anchor_scroll_after_document_open.html] [test_bfcache_plus_hash.html] @@ -120,6 +124,7 @@ support-files = [test_framedhistoryframes.html] support-files = file_framedhistoryframes.html [test_pushState_after_document_open.html] +[test_tor_bug16620.html] [test_navigate_after_pagehide.html] [test_redirect_history.html] support-files = diff --git a/docshell/test/mochitest/test_tor_bug16620.html b/docshell/test/mochitest/test_tor_bug16620.html new file mode 100644 index 000000000000..46fff5a04711 --- /dev/null +++ b/docshell/test/mochitest/test_tor_bug16620.html @@ -0,0 +1,211 @@ +<!DOCTYPE HTML> +<html> + +<meta charset="utf-8"> +<head> + <title>Test for Tor Bug 16620 - Clear window.name when no referrer sent</title> + <script type="application/javascript" + src="/tests/SimpleTest/SimpleTest.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> +</head> +<body> +<a target="_blank" href="https://trac.torproject.org/projects/tor/ticket/16620">Tor Bug 16620</a> +<script> +// ## Test constants +const kTestPath = "/tests/docshell/test/mochitest/"; +const kLinkFile = "tor_bug16620.html"; +const kFormFile = "tor_bug16620_form.html"; +const kBaseURL1 = "http://example.com"; +const kBaseURL1_https = "https://example.com"; +const kBaseURL2 = "http://example.net"; +const kSendReferrerPref = "network.http.sendRefererHeader"; +const kSendReferrerNever = 0; +const kSendReferrerForUserAction = 1; +const kSendReferrerAlways = 2; + +let gTests = [ + // Test #1: Same domain; never send referrer. + { startURL: kBaseURL1, destURL: kBaseURL1, + referrerPref: kSendReferrerNever, + expectIsolation: true }, + + // Test #2: Same domain; send referrer upon user action. + { startURL: kBaseURL1, destURL: kBaseURL1, + referrerPref: kSendReferrerForUserAction, + expectIsolation: false }, + + // Test #3: Same domain; always send referrer. + { startURL: kBaseURL1, destURL: kBaseURL1, + referrerPref: kSendReferrerAlways, + expectIsolation: false }, + + // Test #4: Different top-level domains; never send referrer. + { startURL: kBaseURL1, destURL: kBaseURL2, + referrerPref: kSendReferrerNever, + expectIsolation: true }, + + // Test #5: Different top-level domains; send referrer upon user action. + { startURL: kBaseURL1, destURL: kBaseURL2, + referrerPref: kSendReferrerForUserAction, + expectIsolation: false }, + + // Test #6: Different top-level domains; always send referrer. + { startURL: kBaseURL1, destURL: kBaseURL2, + referrerPref: kSendReferrerAlways, + expectIsolation: false }, + + // Test #7: https -> http transition. + { startURL: kBaseURL1_https, destURL: kBaseURL1, + referrerPref: kSendReferrerForUserAction, + expectIsolation: true }, + + // Test #8: Same domain, rel="noreferrer" on link. + { startURL: kBaseURL1, destURL: kBaseURL1, noReferrerOnLink: true, + referrerPref: kSendReferrerAlways, + expectIsolation: true }, + + // Test #9: Same domain, "no-referrer" meta tag in document. + { startURL: kBaseURL1, destURL: kBaseURL1, noReferrerInMetaTag: true, + referrerPref: kSendReferrerAlways, + expectIsolation: true }, + + // Test #10: Like test #9, but reset window.name during unload. + // (similar to http://www.thomasfrank.se/sessvarsTestPage1.html) + { startURL: kBaseURL1, destURL: kBaseURL1, noReferrerInMetaTag: true, + resetInUnload: true, + referrerPref: kSendReferrerAlways, + expectIsolation: true }, + + // Test #11: Data URL as destination (no referrer). + { startURL: kBaseURL1, + referrerPref: kSendReferrerAlways, + expectIsolation: true }, + + // Test #12: Ensure that window.name is preserved when a dynamically loaded + // iframe is used to perform a form post (regression test for Tor bug 18168). + { startURL: kBaseURL1, + isFormTest: true, + referrerPref: kSendReferrerAlways, + expectIsolation: false }, +]; + +let gCurTest = 0; +let gCurWinName, gChildWin, gDataURL; + +// ## Utility functions +function generateRandomName() +{ + // Generate a random 6 character string using 0-9 and a-z. + return ((1 + Math.random()).toString(36) + '000000').substr(2, 6); +} + +function startNextTest() { + ++gCurTest; + if (gCurTest > gTests.length) { + SimpleTest.finish(); + } else { + let curTest = gTests[gCurTest - 1]; + if ("referrerPref" in curTest) + SpecialPowers.setIntPref(kSendReferrerPref, curTest.referrerPref); + else + SpecialPowers.setIntPref(kSendReferrerPref, kSendReferrerForUserAction); + gCurWinName = generateRandomName(); + let url = curTest.startURL + kTestPath; + if (curTest.isFormTest === true) { + url += kFormFile + "?" + gCurWinName; + gChildWin = window.open(url, undefined); + } else { + url += kLinkFile + "?firstDocLoaded"; + gChildWin = window.open(url, gCurWinName); + } + } +} + +// ## Add a message event listener. +window.addEventListener("message", function(aEvent) { + if (aEvent.source !== gChildWin) + return; + +// console.log("parent received message:" + JSON.stringify(aEvent.data)); + + let proceedToNextTest = false; + let curTest = gTests[gCurTest - 1]; + let state = aEvent.data.state; + let winName = aEvent.data.winName; + if ("firstDocLoaded" == state) { + // Process response from step one of the link-based tests. + let step1Passed = (winName === gCurWinName); + if (!step1Passed) { + ok(step1Passed, "Test #" + gCurTest + + " - first document's name matches window.open parameter"); + proceedToNextTest = true; + } + + // Send an "openURL" message to the loaded document. + let url2 = (curTest.destURL) + ? curTest.destURL + kTestPath + kLinkFile + "?secondDocLoaded" + : gDataURL; + let noReferrerOnLink = (curTest.noReferrerOnLink === true); + let noReferrerInMetaTag = (curTest.noReferrerInMetaTag === true); + let resetInUnload = (curTest.resetInUnload === true); + aEvent.source.postMessage({ action: "openURL", url: url2, + noReferrerOnLink: noReferrerOnLink, + noReferrerInMetaTag: noReferrerInMetaTag, + resetInUnload: resetInUnload }, + "*"); + } else if ("secondDocLoaded" == state) { + // Process response from step two of the link-based tests. + if (curTest.expectIsolation) { + ok(winName === "", + "Test #" + gCurTest + " - second document: name was cleared"); + } else { + ok(winName === gCurWinName, + "Test #" + gCurTest + " - second document: name was preserved"); + } + proceedToNextTest = true; + } else if ("formPostDone" == state) { + // Process response from the form post tests. + if (curTest.expectIsolation) { + ok(winName === "", + "Test #" + gCurTest + " - iframe form post: name was cleared"); + } else { + ok(winName === gCurWinName, + "Test #" + gCurTest + " - iframe form post: name was preserved"); + } + proceedToNextTest = true; + + } + + if (proceedToNextTest) { + gChildWin.close(); + startNextTest(); + } + }, false); + + SimpleTest.waitForExplicitFinish(); + + if (SpecialPowers.getBoolPref("security.nocertdb")) { + // Mochitests don't simulate https correctly with "security.nocertdb" + // enabled. See https://bugs.torproject.org/18087 + ok(false, "Please disable the pref `security.nocertdb` before running this test."); + SimpleTest.finish(); + } else { + + // Read file contents, construct a data URL (used by some tests), and + // then start the first test. + let url = kTestPath + kLinkFile; + let xhr = new XMLHttpRequest(); + xhr.open("GET", url); + xhr.onload = function() { + gDataURL = "data:text/html;charset=utf-8," + + encodeURIComponent(this.responseText); + startNextTest(); + } + xhr.send(); + } +</script> +</body> +</html> diff --git a/docshell/test/mochitest/tor_bug16620.html b/docshell/test/mochitest/tor_bug16620.html new file mode 100644 index 000000000000..26b8e406bbff --- /dev/null +++ b/docshell/test/mochitest/tor_bug16620.html @@ -0,0 +1,51 @@ +<!DOCTYPE HTML> +<html> + +<head> + <meta charset="UTF-8"> + <title>Supporting Doc for Tor Bug 16620 Tests</title> +</head> +<body> +<a id="link" href="">secondDoc</a> + +<script> +// Extract test state from our query string, defaulting to +// "secondDocLoaded" to support use of this HTML content within +// a data URI (where query strings are not supported). +let state = (location.search.length > 0) ? location.search.substr(1) + : "secondDocLoaded"; + +// Notify the test driver. +opener.postMessage({ state: state, winName: window.name }, "*"); + +// Add a message event listener to process "openURL" actions. +window.addEventListener("message", function(aEvent) { + if (aEvent.data.action == "openURL") { + if (aEvent.data.noReferrerInMetaTag) { + let metaElem = document.createElement("meta"); + metaElem.name = "referrer"; + metaElem.content = "no-referrer"; + document.head.appendChild(metaElem); + } + + let linkElem = document.getElementById("link"); + linkElem.href = aEvent.data.url; + if (aEvent.data.noReferrerOnLink) + linkElem.rel = "noreferrer"; + + if (aEvent.data.resetInUnload) { + let tmpName = window.name; + window.addEventListener("unload", function() { + window.name = tmpName; + }, false); + } + + linkElem.click(); + } +}, false); +</script> +</body> +</html> diff --git a/docshell/test/mochitest/tor_bug16620_form.html b/docshell/test/mochitest/tor_bug16620_form.html new file mode 100644 index 000000000000..279f62e63fab --- /dev/null +++ b/docshell/test/mochitest/tor_bug16620_form.html @@ -0,0 +1,51 @@ +<!DOCTYPE HTML> +<html> + +<head> + <meta charset="UTF-8"> + <title>Supporting Form-based Doc for Tor Bug 16620 Tests</title> +</head> +<body> + +<script> +document.addEventListener("DOMContentLoaded", function () { + addPostTarget(); +}, false); + + +function addPostTarget() +{ + let frameName = location.search.substr(1); + let form = document.getElementById("postform"); + let iframe = document.createElement("iframe"); + iframe.style.border = "1px solid red"; + iframe.src = "about:blank"; + form.target = iframe.name = iframe.id = frameName; + document.body.appendChild(iframe); + + let didSubmit = false; + iframe.onload = function() { + if (!didSubmit) { + didSubmit = true; + let submitButton = document.getElementById("submitButton"); + submitButton.click(); + } else { + // Form submission complete. Report iframe's name to test driver. + opener.postMessage({ state: "formPostDone", winName: iframe.name }, "*"); + } + }; +} + +</script> +<form name="postform" id="postform" + action="data:text/plain;charset=utf-8,Hello%20world" + method="POST" enctype="multipart/form-data"> + <input type="hidden" name="field1" value="value1"><br> + <input id="submitButton" type="submit" value="Post It"> +</body> +</html> diff --git a/modules/libpref/init/StaticPrefList.yaml b/modules/libpref/init/StaticPrefList.yaml index 058df55a189d..3f578a7d37bc 100644 --- a/modules/libpref/init/StaticPrefList.yaml +++ b/modules/libpref/init/StaticPrefList.yaml @@ -10436,7 +10436,7 @@ - name: privacy.window.name.update.enabled type: bool - value: true + value: false mirror: always # By default, the network state isolation is not active when there is a proxy

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[tor-browser/tor-browser-91.6.0esr-11.5-1] Bug 13028: Prevent potential proxy bypass cases.
by richard＠torproject.org 09 Feb '22

09 Feb '22

commit 20677ad10e3f73d4dd41a6ebf890e44b6e5d2a4e Author: Mike Perry <mikeperry-git(a)torproject.org> Date: Mon Sep 29 14:30:19 2014 -0700 Bug 13028: Prevent potential proxy bypass cases. It looks like these cases should only be invoked in the NSS command line tools, and not the browser, but I decided to patch them anyway because there literally is a maze of network function pointers being passed around, and it's very hard to tell if some random code might not pass in the proper proxied versions of the networking code here by accident. --- security/nss/lib/certhigh/ocsp.c | 8 ++++++++ .../lib/libpkix/pkix_pl_nss/module/pkix_pl_socket.c | 21 +++++++++++++++++++++ 2 files changed, 29 insertions(+) diff --git a/security/nss/lib/certhigh/ocsp.c b/security/nss/lib/certhigh/ocsp.c index cea8456606bf..86fa971cfbef 100644 --- a/security/nss/lib/certhigh/ocsp.c +++ b/security/nss/lib/certhigh/ocsp.c @@ -2932,6 +2932,14 @@ ocsp_ConnectToHost(const char *host, PRUint16 port) PRNetAddr addr; char *netdbbuf = NULL; + // XXX: Do we need a unittest ifdef here? We don't want to break the tests, but + // we want to ensure nothing can ever hit this code in production. +#if 1 + printf("Tor Browser BUG: Attempted OSCP direct connect to %s, port %u\n", host, + port); + goto loser; +#endif + sock = PR_NewTCPSocket(); if (sock == NULL) goto loser; diff --git a/security/nss/lib/libpkix/pkix_pl_nss/module/pkix_pl_socket.c b/security/nss/lib/libpkix/pkix_pl_nss/module/pkix_pl_socket.c index e8698376b5be..85791d84a932 100644 --- a/security/nss/lib/libpkix/pkix_pl_nss/module/pkix_pl_socket.c +++ b/security/nss/lib/libpkix/pkix_pl_nss/module/pkix_pl_socket.c @@ -1334,6 +1334,13 @@ pkix_pl_Socket_Create( plContext), PKIX_COULDNOTCREATESOCKETOBJECT); + // XXX: Do we need a unittest ifdef here? We don't want to break the tests, but + // we want to ensure nothing can ever hit this code in production. +#if 1 + printf("Tor Browser BUG: Attempted pkix direct socket connect\n"); + PKIX_ERROR(PKIX_PRNEWTCPSOCKETFAILED); +#endif + socket->isServer = isServer; socket->timeout = timeout; socket->clientSock = NULL; @@ -1433,6 +1440,13 @@ pkix_pl_Socket_CreateByName( localCopyName = PL_strdup(serverName); + // XXX: Do we need a unittest ifdef here? We don't want to break the tests, but + // we want to ensure nothing can ever hit this code in production. +#if 1 + printf("Tor Browser BUG: Attempted pkix direct connect to %s\n", serverName); + PKIX_ERROR(PKIX_PRNEWTCPSOCKETFAILED); +#endif + sepPtr = strchr(localCopyName, ':'); /* First strip off the portnum, if present, from the end of the name */ if (sepPtr) { @@ -1582,6 +1596,13 @@ pkix_pl_Socket_CreateByHostAndPort( PKIX_ENTER(SOCKET, "pkix_pl_Socket_CreateByHostAndPort"); PKIX_NULLCHECK_THREE(hostname, pStatus, pSocket); + // XXX: Do we need a unittest ifdef here? We don't want to break the tests, but + // we want to ensure nothing can ever hit this code in production. +#if 1 + printf("Tor Browser BUG: Attempted pkix direct connect to %s, port %u\n", hostname, + portnum); + PKIX_ERROR(PKIX_PRNEWTCPSOCKETFAILED); +#endif prstatus = PR_GetHostByName(hostname, buf, sizeof(buf), &hostent);

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[tor-browser/tor-browser-91.6.0esr-11.5-1] Bug 23104: Add a default line height compensation
by richard＠torproject.org 09 Feb '22

09 Feb '22

commit e3a740c51b61988c6360d3dbfed888da653b5cfa Author: Igor Oliveira <igor.oliveira(a)posteo.net> Date: Sun Dec 10 18:16:59 2017 -0200 Bug 23104: Add a default line height compensation Many fonts have issues with their vertical metrics. they are used to influence the height of ascenders and depth of descenders. Gecko uses it to calculate the line height (font height + ascender + descender), however because of that idiosyncratic behavior across multiple operating systems, it can be used to identify the user's OS. The solution proposed in the patch uses a default factor to be multiplied with the font size, simulating the concept of ascender and descender. This way all operating systems will have the same line height only and only if the frame is outside the chrome. --- layout/generic/ReflowInput.cpp | 19 +++++++++--- layout/generic/test/mochitest.ini | 1 + layout/generic/test/test_tor_bug23104.html | 50 ++++++++++++++++++++++++++++++ 3 files changed, 65 insertions(+), 5 deletions(-) diff --git a/layout/generic/ReflowInput.cpp b/layout/generic/ReflowInput.cpp index 2c56afd2e02a..4d30c7762c14 100644 --- a/layout/generic/ReflowInput.cpp +++ b/layout/generic/ReflowInput.cpp @@ -31,6 +31,7 @@ #include "mozilla/SVGUtils.h" #include "mozilla/dom/HTMLInputElement.h" #include "nsGridContainerFrame.h" +#include "nsContentUtils.h" using namespace mozilla; using namespace mozilla::css; @@ -2642,7 +2643,8 @@ void ReflowInput::CalculateBlockSideMargins() { // For risk management, we use preference to control the behavior, and // eNoExternalLeading is the old behavior. -static nscoord GetNormalLineHeight(nsFontMetrics* aFontMetrics) { +static nscoord GetNormalLineHeight(nsIContent* aContent, + nsFontMetrics* aFontMetrics) { MOZ_ASSERT(nullptr != aFontMetrics, "no font metrics"); nscoord normalLineHeight; @@ -2650,6 +2652,12 @@ static nscoord GetNormalLineHeight(nsFontMetrics* aFontMetrics) { nscoord externalLeading = aFontMetrics->ExternalLeading(); nscoord internalLeading = aFontMetrics->InternalLeading(); nscoord emHeight = aFontMetrics->EmHeight(); + + if (nsContentUtils::ShouldResistFingerprinting() && + !aContent->IsInChromeDocument()) { + return NSToCoordRound(emHeight * NORMAL_LINE_HEIGHT_FACTOR); + } + switch (GetNormalLineHeightCalcControl()) { case eIncludeExternalLeading: normalLineHeight = emHeight + internalLeading + externalLeading; @@ -2667,7 +2675,8 @@ static nscoord GetNormalLineHeight(nsFontMetrics* aFontMetrics) { return normalLineHeight; } -static inline nscoord ComputeLineHeight(ComputedStyle* aComputedStyle, +static inline nscoord ComputeLineHeight(nsIContent* aContent, + ComputedStyle* aComputedStyle, nsPresContext* aPresContext, nscoord aBlockBSize, float aFontSizeInflation) { @@ -2696,7 +2705,7 @@ static inline nscoord ComputeLineHeight(ComputedStyle* aComputedStyle, RefPtr<nsFontMetrics> fm = nsLayoutUtils::GetFontMetricsForComputedStyle( aComputedStyle, aPresContext, aFontSizeInflation); - return GetNormalLineHeight(fm); + return GetNormalLineHeight(aContent, fm); } nscoord ReflowInput::CalcLineHeight() const { @@ -2718,7 +2727,7 @@ nscoord ReflowInput::CalcLineHeight(nsIContent* aContent, float aFontSizeInflation) { MOZ_ASSERT(aComputedStyle, "Must have a ComputedStyle"); - nscoord lineHeight = ComputeLineHeight(aComputedStyle, aPresContext, + nscoord lineHeight = ComputeLineHeight(aContent, aComputedStyle, aPresContext, aBlockBSize, aFontSizeInflation); NS_ASSERTION(lineHeight >= 0, "ComputeLineHeight screwed up"); @@ -2731,7 +2740,7 @@ nscoord ReflowInput::CalcLineHeight(nsIContent* aContent, if (!lh.IsNormal()) { RefPtr<nsFontMetrics> fm = nsLayoutUtils::GetFontMetricsForComputedStyle( aComputedStyle, aPresContext, aFontSizeInflation); - nscoord normal = GetNormalLineHeight(fm); + nscoord normal = GetNormalLineHeight(aContent, fm); if (lineHeight < normal) { lineHeight = normal; } diff --git a/layout/generic/test/mochitest.ini b/layout/generic/test/mochitest.ini index bde689457ebc..af9dbe3c0444 100644 --- a/layout/generic/test/mochitest.ini +++ b/layout/generic/test/mochitest.ini @@ -145,3 +145,4 @@ skip-if = debug == true || tsan # the test is slow. tsan: bug 1612707 support-files = file_reframe_for_lazy_load_image.html [test_bug1655135.html] +[test_tor_bug23104.html] diff --git a/layout/generic/test/test_tor_bug23104.html b/layout/generic/test/test_tor_bug23104.html new file mode 100644 index 000000000000..8ff1d2190c45 --- /dev/null +++ b/layout/generic/test/test_tor_bug23104.html @@ -0,0 +1,50 @@ +<!DOCTYPE HTML> +<meta charset="UTF-8"> +<html> +<head> + <title>Test for Tor Bug #23104: CSS line-height reveals the platform Tor browser is running</title> + <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> + <script type="application/javascript" src="/tests/SimpleTest/SpawnTask.js"></script> + <style type="text/css"> + span { + background-color: #000; + color: #fff; + font-size: 16.5px; + } + </style> +</head> +<body> +<span id="test1">Test1</span> +<span id="test2">كلمة</span> +<span id="test3">ação</span> +<script> + +let setPref = async function (key, value) { + await SpecialPowers.pushPrefEnv({"set": [[key, value]]}); +} + +function getStyle(el, styleprop) { + el = document.getElementById(el); + return document.defaultView.getComputedStyle(el, null).getPropertyValue(styleprop); +} + +function validateElement(elementName, isFingerprintResistent) { + var fontSize = getStyle(elementName, 'font-size'); + var lineHeight = getStyle(elementName, 'line-height'); + var validationCb = isFingerprintResistent ? is : isnot; + validationCb(parseFloat(lineHeight), Math.round(parseFloat(fontSize)) * 1.2, 'Line Height validation'); +} + +add_task(async function() { + await setPref("layout.css.line-height.normal-as-resolved-value.enabled", false); + for (let resistFingerprintingValue of [true, false]) { + await setPref("privacy.resistFingerprinting", resistFingerprintingValue); + for (let elementId of ['test1', 'test2', 'test3']) { + validateElement(elementId, resistFingerprintingValue); + } + } +}); + +</script> +</body> +</html>

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[tor-browser/tor-browser-91.6.0esr-11.5-1] Bug 21830: Copying large text from web console leaks to /tmp
by richard＠torproject.org 09 Feb '22

09 Feb '22

commit 12f21f2a5eb74ef206def7d3ae03329762bdb615 Author: Georg Koppen <gk(a)torproject.org> Date: Fri Aug 4 05:55:49 2017 +0000 Bug 21830: Copying large text from web console leaks to /tmp Patch written by Neill Miller --- widget/nsTransferable.cpp | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/widget/nsTransferable.cpp b/widget/nsTransferable.cpp index c82549a4d1d1..f8ecfbff0983 100644 --- a/widget/nsTransferable.cpp +++ b/widget/nsTransferable.cpp @@ -33,6 +33,7 @@ Notes to self: #include "nsILoadContext.h" #include "nsXULAppAPI.h" #include "mozilla/UniquePtr.h" +#include "mozilla/Preferences.h" using namespace mozilla; @@ -195,6 +196,11 @@ nsTransferable::Init(nsILoadContext* aContext) { if (aContext) { mPrivateData = aContext->UsePrivateBrowsing(); + } else { + // without aContext here to provide PrivateBrowsing information, + // we defer to the active configured setting + mPrivateData = + mozilla::Preferences::GetBool("browser.privatebrowsing.autostart"); } #ifdef DEBUG mInitialized = true;

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[tor-browser/tor-browser-91.6.0esr-11.5-1] Bug 32220: Improve the letterboxing experience
by richard＠torproject.org 09 Feb '22

09 Feb '22

commit 08fecf2f46ac323f9d630e74a0b1b0ae6ba79fde Author: Richard Pospesel <richard(a)torproject.org> Date: Mon Oct 28 17:42:17 2019 -0700 Bug 32220: Improve the letterboxing experience CSS and JS changes to alter the UX surrounding letterboxing. The browser element containing page content is now anchored to the bottom of the toolbar, and the remaining letterbox margin is the same color as the firefox chrome. The letterbox margin and border are tied to the currently selected theme. Also adds a 'needsLetterbox' property to tabbrowser.xml to fix a race condition present when using the 'isEmpty' property. Using 'isEmpty' as a proxy for 'needsLetterbox' resulted in over-zealous/unnecessary letterboxing of about:blank tabs. --- browser/base/content/browser.css | 7 ++ browser/base/content/tabbrowser-tab.js | 9 +++ browser/themes/shared/tabs.inc.css | 6 ++ .../components/resistfingerprinting/RFPHelper.jsm | 94 +++++++++++++++++++--- 4 files changed, 104 insertions(+), 12 deletions(-) diff --git a/browser/base/content/browser.css b/browser/base/content/browser.css index 2d74162b1543..0a766b976fc5 100644 --- a/browser/base/content/browser.css +++ b/browser/base/content/browser.css @@ -94,6 +94,13 @@ body { } } +.browserStack > browser.letterboxing { + border-color: var(--chrome-content-separator-color); + border-style: solid; + border-width : 1px; + border-top: none; +} + %ifdef MENUBAR_CAN_AUTOHIDE #toolbar-menubar[autohide="true"] { overflow: hidden; diff --git a/browser/base/content/tabbrowser-tab.js b/browser/base/content/tabbrowser-tab.js index 2d12c357da14..524493ac9afb 100644 --- a/browser/base/content/tabbrowser-tab.js +++ b/browser/base/content/tabbrowser-tab.js @@ -230,6 +230,15 @@ return true; } + get needsLetterbox() { + let browser = this.linkedBrowser; + if (isBlankPageURL(browser.currentURI.spec)) { + return false; + } + + return true; + } + get lastAccessed() { return this._lastAccessed == Infinity ? Date.now() : this._lastAccessed; } diff --git a/browser/themes/shared/tabs.inc.css b/browser/themes/shared/tabs.inc.css index 2a572d2dce2c..98f3c68e4a04 100644 --- a/browser/themes/shared/tabs.inc.css +++ b/browser/themes/shared/tabs.inc.css @@ -50,6 +50,12 @@ background-color: var(--tabpanel-background-color); } +/* extend down the toolbar's colors when letterboxing is enabled*/ +#tabbrowser-tabpanels.letterboxing { + background-color: var(--toolbar-bgcolor); + background-image: var(--toolbar-bgimage); +} + #tabbrowser-tabs, #tabbrowser-arrowscrollbox, #tabbrowser-tabs[positionpinnedtabs] > #tabbrowser-arrowscrollbox > .tabbrowser-tab[pinned] { diff --git a/toolkit/components/resistfingerprinting/RFPHelper.jsm b/toolkit/components/resistfingerprinting/RFPHelper.jsm index 166ad21e9013..9520d8720631 100644 --- a/toolkit/components/resistfingerprinting/RFPHelper.jsm +++ b/toolkit/components/resistfingerprinting/RFPHelper.jsm @@ -40,6 +40,7 @@ class _RFPHelper { // ============================================================================ constructor() { this._initialized = false; + this._borderDimensions = null; } init() { @@ -361,6 +362,24 @@ class _RFPHelper { }); } + getBorderDimensions(aBrowser) { + if (this._borderDimensions) { + return this._borderDimensions; + } + + const win = aBrowser.ownerGlobal; + const browserStyle = win.getComputedStyle(aBrowser); + + this._borderDimensions = { + top : parseInt(browserStyle.borderTopWidth), + right: parseInt(browserStyle.borderRightWidth), + bottom : parseInt(browserStyle.borderBottomWidth), + left : parseInt(browserStyle.borderLeftWidth), + }; + + return this._borderDimensions; + } + _addOrClearContentMargin(aBrowser) { let tab = aBrowser.getTabBrowser().getTabForBrowser(aBrowser); @@ -369,9 +388,13 @@ class _RFPHelper { return; } + // we add the letterboxing class even if the content does not need letterboxing + // in which case margins are set such that the borders are hidden + aBrowser.classList.add("letterboxing"); + // We should apply no margin around an empty tab or a tab with system // principal. - if (tab.isEmpty || aBrowser.contentPrincipal.isSystemPrincipal) { + if (!tab.needsLetterbox || aBrowser.contentPrincipal.isSystemPrincipal) { this._clearContentViewMargin(aBrowser); } else { this._roundContentView(aBrowser); @@ -539,10 +562,29 @@ class _RFPHelper { // Calculating the margins around the browser element in order to round the // content viewport. We will use a 200x100 stepping if the dimension set // is not given. - let margins = calcMargins(containerWidth, containerHeight); + + const borderDimensions = this.getBorderDimensions(aBrowser); + const marginDims = calcMargins(containerWidth, containerHeight - borderDimensions.top); + + let margins = { + top : 0, + right : 0, + bottom : 0, + left : 0, + }; + + // snap browser element to top + margins.top = 0; + // and leave 'double' margin at the bottom + margins.bottom = 2 * marginDims.height - borderDimensions.bottom; + // identical margins left and right + margins.right = marginDims.width - borderDimensions.right; + margins.left = marginDims.width - borderDimensions.left; + + const marginStyleString = `${margins.top}px ${margins.right}px ${margins.bottom}px ${margins.left}px`; // If the size of the content is already quantized, we do nothing. - if (aBrowser.style.margin == `${margins.height}px ${margins.width}px`) { + if (aBrowser.style.margin === marginStyleString) { log("_roundContentView[" + logId + "] is_rounded == true"); if (this._isLetterboxingTesting) { log( @@ -563,19 +605,35 @@ class _RFPHelper { "_roundContentView[" + logId + "] setting margins to " + - margins.width + - " x " + - margins.height + marginStyleString ); - // One cannot (easily) control the color of a margin unfortunately. - // An initial attempt to use a border instead of a margin resulted - // in offset event dispatching; so for now we use a colorless margin. - aBrowser.style.margin = `${margins.height}px ${margins.width}px`; + + // The margin background color is determined by the background color of the + // window's tabpanels#tabbrowser-tabpanels element + aBrowser.style.margin = marginStyleString; }); } _clearContentViewMargin(aBrowser) { + const borderDimensions = this.getBorderDimensions(aBrowser); + // set the margins such that the browser elements border is visible up top, but + // are rendered off-screen on the remaining sides + let margins = { + top : 0, + right : -borderDimensions.right, + bottom : -borderDimensions.bottom, + left : -borderDimensions.left, + }; + const marginStyleString = `${margins.top}px ${margins.right}px ${margins.bottom}px ${margins.left}px`; + + aBrowser.ownerGlobal.requestAnimationFrame(() => { + aBrowser.style.margin = marginStyleString; + }); + } + + _removeLetterboxing(aBrowser) { aBrowser.ownerGlobal.requestAnimationFrame(() => { + aBrowser.classList.remove("letterboxing"); aBrowser.style.margin = ""; }); } @@ -593,6 +651,11 @@ class _RFPHelper { aWindow.gBrowser.addTabsProgressListener(this); aWindow.addEventListener("TabOpen", this); + const tabPanel = aWindow.document.getElementById("tabbrowser-tabpanels"); + if (tabPanel) { + tabPanel.classList.add("letterboxing"); + } + // Rounding the content viewport. this._updateMarginsForTabsInWindow(aWindow); } @@ -616,10 +679,17 @@ class _RFPHelper { tabBrowser.removeTabsProgressListener(this); aWindow.removeEventListener("TabOpen", this); - // Clear all margins and tooltip for all browsers. + // revert tabpanel's background colors to default + const tabPanel = aWindow.document.getElementById("tabbrowser-tabpanels"); + if (tabPanel) { + tabPanel.classList.remove("letterboxing"); + } + + // and revert each browser element to default, + // restore default margins and remove letterboxing class for (let tab of tabBrowser.tabs) { let browser = tab.linkedBrowser; - this._clearContentViewMargin(browser); + this._removeLetterboxing(browser); } }

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[tor-browser/tor-browser-91.6.0esr-11.5-1] Bug 11641: change TBB command line flags to be more like Firefox's
by richard＠torproject.org 09 Feb '22

09 Feb '22

commit 39d02164c2d77fe4c51a33924437d626a2ef568c Author: Kathy Brade <brade(a)pearlcrescent.com> Date: Tue Apr 29 13:08:24 2014 -0400 Bug 11641: change TBB command line flags to be more like Firefox's Unless the -osint command line flag is used, the browser now defaults to the equivalent of -no-remote. There is a new -allow-remote flag that may be used to restore the original (Firefox-like) default behavior. --- toolkit/xre/nsAppRunner.cpp | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) diff --git a/toolkit/xre/nsAppRunner.cpp b/toolkit/xre/nsAppRunner.cpp index 75c381724deb..d11e586d7096 100644 --- a/toolkit/xre/nsAppRunner.cpp +++ b/toolkit/xre/nsAppRunner.cpp @@ -1837,8 +1837,10 @@ static void DumpHelp() { " --migration Start with migration wizard.\n" " --ProfileManager Start with ProfileManager.\n" #ifdef MOZ_HAS_REMOTE - " --no-remote Do not accept or send remote commands; implies\n" + " --no-remote (default) Do not accept or send remote commands; " + "implies\n" " --new-instance.\n" + " --allow-remote Accept and send remote commands.\n" " --new-instance Open new instance, not a new window in running " "instance.\n" #endif @@ -3985,16 +3987,25 @@ int XREMain::XRE_mainInit(bool* aExitFlag) { gSafeMode); #if defined(MOZ_HAS_REMOTE) + // In Tor Browser, remoting is disabled by default unless -osint is used. + bool allowRemote = (CheckArg("allow-remote") == ARG_FOUND); + bool isOsint = (CheckArg("osint", nullptr, CheckArgFlag::None) == ARG_FOUND); + if (!allowRemote && !isOsint) { + SaveToEnv("MOZ_NO_REMOTE=1"); + } // Handle --no-remote and --new-instance command line arguments. Setup // the environment to better accommodate other components and various // restart scenarios. ar = CheckArg("no-remote"); - if (ar == ARG_FOUND || EnvHasValue("MOZ_NO_REMOTE")) { + if ((ar == ARG_FOUND) && allowRemote) { + PR_fprintf(PR_STDERR, + "Error: argument --no-remote is invalid when argument " + "--allow-remote is specified\n"); + return 1; + } + if (EnvHasValue("MOZ_NO_REMOTE")) { mDisableRemoteClient = true; mDisableRemoteServer = true; - if (!EnvHasValue("MOZ_NO_REMOTE")) { - SaveToEnv("MOZ_NO_REMOTE=1"); - } } ar = CheckArg("new-instance");

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[tor-browser/tor-browser-91.6.0esr-11.5-1] Bug 40432: Prevent probing installed applications
by richard＠torproject.org 09 Feb '22

09 Feb '22

commit 7d4820ae7c54a5b8f9cf046d77ee04c7b7e34d62 Author: Matthew Finkel <sysrqb(a)torproject.org> Date: Mon May 17 18:09:09 2021 +0000 Bug 40432: Prevent probing installed applications --- .../exthandler/nsExternalHelperAppService.cpp | 30 ++++++++++++++++++---- 1 file changed, 25 insertions(+), 5 deletions(-) diff --git a/uriloader/exthandler/nsExternalHelperAppService.cpp b/uriloader/exthandler/nsExternalHelperAppService.cpp index 021246211a26..0d697b3bec33 100644 --- a/uriloader/exthandler/nsExternalHelperAppService.cpp +++ b/uriloader/exthandler/nsExternalHelperAppService.cpp @@ -956,8 +956,33 @@ nsresult nsExternalHelperAppService::GetFileTokenForPath( ////////////////////////////////////////////////////////////////////////////////////////////////////// // begin external protocol service default implementation... ////////////////////////////////////////////////////////////////////////////////////////////////////// + +static const char kExternalProtocolPrefPrefix[] = + "network.protocol-handler.external."; +static const char kExternalProtocolDefaultPref[] = + "network.protocol-handler.external-default"; + NS_IMETHODIMP nsExternalHelperAppService::ExternalProtocolHandlerExists( const char* aProtocolScheme, bool* aHandlerExists) { + + // Replicate the same check performed in LoadURI. + // Deny load if the prefs say to do so + nsAutoCString externalPref(kExternalProtocolPrefPrefix); + externalPref += aProtocolScheme; + bool allowLoad = false; + *aHandlerExists = false; + if (NS_FAILED(Preferences::GetBool(externalPref.get(), &allowLoad))) { + // no scheme-specific value, check the default + if (NS_FAILED( + Preferences::GetBool(kExternalProtocolDefaultPref, &allowLoad))) { + return NS_OK; // missing default pref + } + } + + if (!allowLoad) { + return NS_OK; // explicitly denied + } + nsCOMPtr<nsIHandlerInfo> handlerInfo; nsresult rv = GetProtocolHandlerInfo(nsDependentCString(aProtocolScheme), getter_AddRefs(handlerInfo)); @@ -1000,11 +1025,6 @@ NS_IMETHODIMP nsExternalHelperAppService::IsExposedProtocol( return NS_OK; } -static const char kExternalProtocolPrefPrefix[] = - "network.protocol-handler.external."; -static const char kExternalProtocolDefaultPref[] = - "network.protocol-handler.external-default"; - // static nsresult nsExternalHelperAppService::EscapeURI(nsIURI* aURI, nsIURI** aResult) { MOZ_ASSERT(aURI);

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[tor-browser/tor-browser-91.6.0esr-11.5-1] Bug 40309: Avoid using regional OS locales
by richard＠torproject.org 09 Feb '22

09 Feb '22

commit f47256b90d43ea57e8d650c9064ca23920af57c2 Author: Alex Catarineu <acat(a)torproject.org> Date: Wed Jan 27 11:28:05 2021 +0100 Bug 40309: Avoid using regional OS locales Only use regional OS locales if the pref `intl.regional_prefs.use_os_locales` is set to true. --- intl/locale/LocaleService.cpp | 25 ------------------------- 1 file changed, 25 deletions(-) diff --git a/intl/locale/LocaleService.cpp b/intl/locale/LocaleService.cpp index 022d41cab2e2..ac001ee98991 100644 --- a/intl/locale/LocaleService.cpp +++ b/intl/locale/LocaleService.cpp @@ -452,31 +452,6 @@ LocaleService::GetRegionalPrefsLocales(nsTArray<nsCString>& aRetVal) { OSPreferences::GetInstance()->GetRegionalPrefsLocales(aRetVal))) { return NS_OK; } - - // If we fail to retrieve them, return the app locales. - GetAppLocalesAsBCP47(aRetVal); - return NS_OK; - } - - // Otherwise, fetch OS Regional Preferences locales and compare the first one - // to the app locale. If the language subtag matches, we can safely use - // the OS Regional Preferences locale. - // - // This facilitates scenarios such as Firefox in "en-US" and User sets - // regional prefs to "en-GB". - nsAutoCString appLocale; - AutoTArray<nsCString, 10> regionalPrefsLocales; - LocaleService::GetInstance()->GetAppLocaleAsBCP47(appLocale); - - if (NS_FAILED(OSPreferences::GetInstance()->GetRegionalPrefsLocales( - regionalPrefsLocales))) { - GetAppLocalesAsBCP47(aRetVal); - return NS_OK; - } - - if (LocaleService::LanguagesMatch(appLocale, regionalPrefsLocales[0])) { - aRetVal = regionalPrefsLocales.Clone(); - return NS_OK; } // Otherwise use the app locales.

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[tor-browser/tor-browser-91.6.0esr-11.5-1] Bug 40069: Add helpers for message passing with extensions
by richard＠torproject.org 09 Feb '22

09 Feb '22

commit 7959d9346ffe892ed78f9b93964a584186ddd6c9 Author: Alex Catarineu <acat(a)torproject.org> Date: Sun Aug 2 19:12:25 2020 +0200 Bug 40069: Add helpers for message passing with extensions --- toolkit/components/extensions/ExtensionParent.jsm | 47 +++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/toolkit/components/extensions/ExtensionParent.jsm b/toolkit/components/extensions/ExtensionParent.jsm index 39ce6d608b86..32d264ed6a4f 100644 --- a/toolkit/components/extensions/ExtensionParent.jsm +++ b/toolkit/components/extensions/ExtensionParent.jsm @@ -263,6 +263,8 @@ const ProxyMessenger = { /** @type Map<number, ParentPort> */ ports: new Map(), + _torRuntimeMessageListeners: [], + init() { this.conduit = new BroadcastConduit(ProxyMessenger, { id: "ProxyMessenger", @@ -328,6 +330,10 @@ const ProxyMessenger = { }, async recvRuntimeMessage(arg, { sender }) { + // We need to listen to some extension messages in Tor Browser + for (const listener of this._torRuntimeMessageListeners) { + listener(arg); + } arg.firstResponse = true; let kind = await this.normalizeArgs(arg, sender); let result = await this.conduit.castRuntimeMessage(kind, arg); @@ -1881,6 +1887,45 @@ for (let name of StartupCache.STORE_NAMES) { StartupCache[name] = new CacheStore(name); } +async function torSendExtensionMessage(extensionId, message) { + // This should broadcast the message to all children "conduits" + // listening for a "RuntimeMessage". Those children conduits + // will either be extension background pages or other extension + // pages listening to browser.runtime.onMessage. + const result = await ProxyMessenger.conduit.castRuntimeMessage("messenger", { + extensionId, + holder: new StructuredCloneHolder(message), + firstResponse: true, + sender: { + id: extensionId, + envType: "addon_child", + }, + }); + return result + ? result.value + : Promise.reject({ message: ERROR_NO_RECEIVERS }); +} + +async function torWaitForExtensionMessage(extensionId, checker) { + return new Promise(resolve => { + const msgListener = msg => { + try { + if (msg && msg.extensionId === extensionId) { + const deserialized = msg.holder.deserialize({}); + if (checker(deserialized)) { + const idx = ProxyMessenger._torRuntimeMessageListeners.indexOf( + msgListener + ); + ProxyMessenger._torRuntimeMessageListeners.splice(idx, 1); + resolve(deserialized); + } + } + } catch (e) {} + }; + ProxyMessenger._torRuntimeMessageListeners.push(msgListener); + }); +} + var ExtensionParent = { GlobalManager, HiddenExtensionPage, @@ -1892,6 +1937,8 @@ var ExtensionParent = { promiseExtensionViewLoaded, watchExtensionProxyContextLoad, DebugUtils, + torSendExtensionMessage, + torWaitForExtensionMessage, }; // browserPaintedPromise and browserStartupPromise are promises that

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