Every single extension on the Add-on Manager is gone! Adblock Plus too! Also evertime is restart Firefox why is AdBlock Plus not up there with Greasemonkey?
I think the Add-On Manager is bugged! Adblock Plus disappears when Firefox is restarted as well. I'm using the newest version of Firefox too. This thing has more bugs than the old one.
Alle Antworten (1)
It is possible that there is a problem with the file(s) that store the extensions registry.
Delete the files extensions.* (e.g. extensions.sqlite, extensions.ini, extensions.cache) and compatibility.ini in the Firefox profile folder to reset the extensions registry.
New files will be created when required.
See "Corrupt extension files":
- http://kb.mozillazine.org/Unable_to_install_themes_or_extensions
- https://support.mozilla.org/kb/Unable+to+install+add-ons
If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the Tools button at the left side of the Search Bar (or click the "Find Updates" button in older Firefox versions) to check if there is a compatibility update available.
If this hasn't helped then also try to delete the addons.sqlite file.