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my extensions work, but the are not shown in the add-on manager

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  • 1 has this problem
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  • Last reply by FredMcD

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my extensions appear in the plug-in area only. after upgrading firefox i have to reinstall all of them one by one with requisite restarts along the way. Help When i backup using FEBE with Extensions selected, not a one is backed up. what am i doing wrong.

my extensions appear in the plug-in area only. after upgrading firefox i have to reinstall all of them one by one with requisite restarts along the way. Help When i backup using FEBE with Extensions selected, not a one is backed up. what am i doing wrong.

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It is possible that there is a problem with the file(s) that store the extensions registry.

Delete the extensions.* files (e.g. extensions.json, extensions.sqlite, extensions.ini) and compatibility.ini in the Firefox profile folder to reset the extensions registry.

New files will be created when required.

See "Corrupt extension files":


If you see disabled or not compatible extensions in "Firefox/Tools > Add-ons > Extensions" then click the Tools button at the left end of the Search bar to check if there is a compatibility update available.

If this hasn't helped then also delete possible addons.json and addons.sqlite files.

You can also check for problems with preferences.