commit b8dcb4f1ab5f06017cee025a2ad35cd17d869679 Author: Richard Pospesel richard@torproject.org Date: Wed Aug 29 15:27:40 2018 -0700

Bug 26381: about:tor page does not load on first start on Windows and browser is stuck in endless reload cycle

The problem goes away when the security.sandbox.content.level pref is set to 2. This patch sets the option on Windows only to work around this issue until the root cause is found and fixed. --- browser/app/profile/000-tor-browser.js | 5 +++++ 1 file changed, 5 insertions(+)

diff --git a/browser/app/profile/000-tor-browser.js b/browser/app/profile/000-tor-browser.js index 2b5ebe8cf949..b7c2ff8207f2 100644 --- a/browser/app/profile/000-tor-browser.js +++ b/browser/app/profile/000-tor-browser.js @@ -330,6 +330,11 @@ pref("browser.onboarding.newtour", "welcome,privacy,tor-network,circuit-display, pref("browser.onboarding.updatetour", "welcome,privacy,tor-network,circuit-display,security,expect-differences,onion-services"); pref("browser.onboarding.skip-tour-button.hide", true);

+#ifdef XP_WIN +// For now, reduce sandboxing level to 2 (see #26381). +pref("security.sandbox.content.level", 2); +#endif + #ifdef TOR_BROWSER_VERSION #expand pref("torbrowser.version", __TOR_BROWSER_VERSION__); #endif