morgan pushed to branch mullvad-browser-128.3.0esr-14.0-1 at The Tor Project / Applications / Mullvad Browser

Commits: 92d9fad9 by Pier Angelo Vendrame at 2024-10-02T18:50:03+00:00 Bug 1918009 - Fix the RFP-spoofed User-Agent header. r=tjr

The spoofed value of the HTTP user-agent header is not consistent with the value of navigator.userAgent on Windows, and this can lead to compatibility issues.

Differential Revision: https://phabricator.services.mozilla.com/D223745 - - - - -

3 changed files:

- browser/components/resistfingerprinting/test/browser/browser_navigator.js - browser/components/resistfingerprinting/test/browser/browser_navigator_iframes.js - toolkit/components/resistfingerprinting/nsRFPService.h

Changes:

===================================== browser/components/resistfingerprinting/test/browser/browser_navigator.js ===================================== @@ -115,11 +115,11 @@ const SPOOFED_UA_NAVIGATOR_OS = { other: "X11; Linux x86_64", }; const SPOOFED_UA_HTTPHEADER_OS = { - linux: "Windows NT 10.0", - win: "Windows NT 10.0", - macosx: "Windows NT 10.0", + linux: "Windows NT 10.0; Win64; x64", + win: "Windows NT 10.0; Win64; x64", + macosx: "Windows NT 10.0; Win64; x64", android: "Android 10; Mobile", - other: "Windows NT 10.0", + other: "Windows NT 10.0; Win64; x64", }; const SPOOFED_HW_CONCURRENCY = 2;

===================================== browser/components/resistfingerprinting/test/browser/browser_navigator_iframes.js ===================================== @@ -130,11 +130,11 @@ const SPOOFED_UA_NAVIGATOR_OS = { other: "X11; Linux x86_64", }; const SPOOFED_UA_HTTPHEADER_OS = { - linux: "Windows NT 10.0", - win: "Windows NT 10.0", - macosx: "Windows NT 10.0", + linux: "Windows NT 10.0; Win64; x64", + win: "Windows NT 10.0; Win64; x64", + macosx: "Windows NT 10.0; Win64; x64", android: "Android 10; Mobile", - other: "Windows NT 10.0", + other: "Windows NT 10.0; Win64; x64", }; const SPOOFED_HW_CONCURRENCY = 2;

===================================== toolkit/components/resistfingerprinting/nsRFPService.h ===================================== @@ -63,7 +63,7 @@ #if defined(MOZ_WIDGET_ANDROID) # define SPOOFED_HTTP_UA_OS "Android 10; Mobile" #else -# define SPOOFED_HTTP_UA_OS "Windows NT 10.0" +# define SPOOFED_HTTP_UA_OS "Windows NT 10.0; Win64; x64" #endif

struct JSContext;

View it on GitLab: https://gitlab.torproject.org/tpo/applications/mullvad-browser/-/commit/92d9...