If you’ve upgraded from Firefox 66 to 67 and noticed your bookmarks, add-ons no longer there in Firefox, you’re not alone! This issue is bothering a lot of users right now where Firefox creates a new profile and makes it as default, don’t fret! Your old profile is still there here is how you can switch to it easily, meanwhile, Mozilla is still collecting information on what went wrong with new profile per install architecture feature they introduced with Firefox 67.
Users who have updated Firefox 66.0.5 to Firefox 67 complaining the new Firefox update wiped old profile data or done a reset to customization, which is not the case, Firefox created a new profile and made it as default, in this case, this could’ve happened if you’ve run beta or Nightly version of Firefox before. This has been done to prevent release profile from mixing with beta or nightly versions which can cause data ls and some other issues.
Switching to old profile from a new profile in Firefox 67
1. Visit about:profiles
2. You can notice newly created profile “default-release” listed along with other profiles in the page, identify your old profile and click “set as default profile”
3. Close and launch Firefox browser.
Some users reporting that they’re receiving “You’ve launched an older version of Firefox” dialog which informs doing so can “corrupt bookmarks and browser history already saved to an existing Firefox profile”, asks to create a new profile. This is also related to changes introduced in version 67.
In this situation, instead of unnecessarily creating a new profile, launch Firefox profile manager by running ” Firefox.exe -p” command without quotes and choose your profile and start Firefox, visit about:profiles and set the old profile as default.
In some cases, enabling
privacy. can trigger this dialog, ensure you’ve set that pref value to it to false in about:config.
Are you affected?