Updated to Mac version 20 -- Hung on add-on compatibility check -- Forced quit -- All extensions wiped out
After being forced to create a secure password for what is an account I don't give a rats ass about the security of and now dealing with this ridiculous fiasco, I'm reconsidering whether Firefox is the browser for me. If I don't get a response that quickly restores my extensions, I think I'll just stop using Firefox.
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Did you reset Firefox?
If you reset Firefox then a new profile is created and some of your data (bookmarks,history, cookies, passwords, form data) is automatically imported and your current profile will be moved to the desktop (Old Firefox Data).
- https://support.mozilla.org/kb/Recovering+important+data+from+an+old+profile
- http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox
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.