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Update firefox to 63.0

Authored by kyrios123 on Oct 23 2018, 6:09 PM.




  • Added content blocking, a collection of Firefox settings that offer users greater control over technology that can track them around the web. In 63, users can opt to block third-party tracking cookies or block all trackers and create exceptions for trusted sites that don’t work correctly with content blocking enabled.
  • WebExtensions now run in their own process
  • Firefox now warns about having multiple windows and tabs open when quitting from the main menu
  • Firefox now recognizes the operating system accessibility setting for reducing animation
  • Added search shortcuts for Top Sites: Amazon and Google appear as Top Sites tiles on the Firefox Home (New Tab) page. When selected these tiles will change focus to the address bar to initiate a search. Currently in US only.


  • Resolved an issue that prevented the address bar from autofilling bookmarked URLs in certain cases


  • In the Library, the Open in Sidebar feature for individual bookmarks was removed
  • The option to Never check for updates was removed from about:preferences. You can use the DisableAppUpdate enterprise policy as a substitute.
  • The Ctrl+Tab shortcut now displays thumbnail previews of your tabs and cycles through tabs in recently used order. This new default behavior is activated only in new profiles and can be changed in preferences.

Full release notes

Depends on D4113, closes T7079

Signed-off-by: Pierre-Yves <>

Test Plan

Browsed some sites and play a video

Diff Detail

R755 firefox
Automatic diff as part of commit; lint not applicable.
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

kyrios123 created this revision.Oct 23 2018, 6:09 PM
kyrios123 requested review of this revision.Oct 23 2018, 6:09 PM
sunnyflunk requested changes to this revision.Oct 24 2018, 9:12 AM
sunnyflunk added a subscriber: sunnyflunk.

Can we give this a try with system icu again. I have patched it.

This revision now requires changes to proceed.Oct 24 2018, 9:12 AM

Will also need to be rebased

Ok, I'll update this patch before EOD

kyrios123 updated this revision to Diff 10183.Oct 24 2018, 2:02 PM

Rebuild firefox against fixed libicu

This revision is now accepted and ready to land.Oct 25 2018, 1:00 AM
This revision was automatically updated to reflect the committed changes.