My Pocket toolbar button and Stumble Upon toolbar disappear with FF 29 Upgrade when I close my browser. Reinstalling brings them back until I close FF again.
This problem only occurs on my home PC with Windows 7 Home Premium. I don't have the problem on my work PC with Win 7 Ultimate. Both computers run the same version of Firefox, 29, and have the same add ons and settings. I use Firefox sync to keep them both the same. I didn't have this problem before the FF 29 upgrade.
Opaite Mbohovái (3)
Create a new profile as a test to check if your current profile is causing the problems.
See "Creating a profile":
- https://support.mozilla.org/kb/profile-manager-create-and-remove-firefox-profiles
- http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Profile_issues
If the new profile works then you can transfer some files from an existing profile to the new profile, but be careful not to copy corrupted files.
You can check for problems with preferences.
Delete a possible user.js file and numbered prefs-##.js files and rename (or delete) the prefs.js file to reset all prefs to the default value including prefs set via user.js and prefs that are no longer supported in the current Firefox release.
You can check for problems caused by a corrupted localstore.rdf file.
I've experimented a little more and I've found out it's not closing the browser that does it, but when I restart my computer. I've closed my browser multiple times, but put the computer to sleep, not a shut down and restart, and the problem does not occur. When I shut the computer down and restart it later, or just a restart, and the problem occurs again.