After installing Firefox-4, all of my addons have disappeared. How to get them back?
After installation of Firefox 4, I was asked to update my add-ons. After the program stalled when downloading the first one (Zotero), Firefox doesn't show any information on my addons anymore
After installation of Firefox 4, I was asked to update my add-ons. After the program stalled when downloading the first one (Zotero), Firefox doesn't show any information on my addons anymore
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This can be caused if one of the files that stores details of installed extensions is corrupt.
- Open your profile folder, for details of how to find it see https://support.mozilla.com/kb/Profiles
- Close Firefox
- Delete the following files if they exist, extensions.cache, extensions.rdf, extensions.ini and extensions.sqlite
- Re-start Firefox, it will then rebuild the list on installed extensions