Setting browser.search.geoSpecificDefaults to false and deleting search- metadata.json seems to stop the default being changed to Yahoo (verified after clearing browser.search.countryCode too).
** Changed in: firefox (Ubuntu) Importance: Undecided => Critical ** Changed in: firefox (Ubuntu) Status: New => Triaged ** Also affects: firefox (Ubuntu Precise) Importance: Undecided Status: New ** Also affects: firefox (Ubuntu Vivid) Importance: Undecided Status: New ** Also affects: firefox (Ubuntu Trusty) Importance: Undecided Status: New ** Changed in: firefox (Ubuntu Precise) Status: New => Triaged ** Changed in: firefox (Ubuntu Trusty) Status: New => Triaged ** Changed in: firefox (Ubuntu Vivid) Status: New => Triaged ** Changed in: firefox (Ubuntu Precise) Importance: Undecided => Critical ** Changed in: firefox (Ubuntu Trusty) Importance: Undecided => Critical ** Changed in: firefox (Ubuntu Vivid) Importance: Undecided => Critical -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1485741 Title: Search defaults to Yahoo when it shouldn't Status in firefox package in Ubuntu: Triaged Status in firefox source package in Precise: Triaged Status in firefox source package in Trusty: Triaged Status in firefox source package in Vivid: Triaged Bug description: When Mozilla initially switched to Yahoo by default for US users, it did this with a geo-specific preference (browser.search.defaultenginename.US), used when the locale was en-US, the user was in a US timezone and Firefox was not a partner build. This meant that Ubuntu builds continued with Google as the default search engine. Some users are reporting that the default is switching to Yahoo after upgrading to 40.0, which is not intentional. Since http://hg.mozilla.org/releases/mozilla-release/rev/37ea9e22ac42, it looks like Firefox downloads a region specific default from a Mozilla server even for partner builds like ours. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1485741/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp