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Why aren't my add-ons showing up in the list?

  • 3 replies
  • 8 have this problem
  • 3 views
  • Last reply by cor-el

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Many of the add-ons I have added to Firefox through time are no longer appearing in the add-ons list. It's been so long since I tinkered with them that I can't even remember where they're supposed to be, but they're not under any of the "Get Add-Ons" "Extensions" "Appearance" "Plugins" or "User Scripts" sections. The add-ons that I can specifically remember are "LeechBlock", "Pocket", "Boomerang for Gmail", and "Firefox Reader". They're all still working, but I can't find them in the add-ons section to disable them or change the options. I installed "Fast Dial" as a test, and it seems to have installed fine, but it likewise does not show up in any of the add-ons sections.

Many of the add-ons I have added to Firefox through time are no longer appearing in the add-ons list. It's been so long since I tinkered with them that I can't even remember where they're supposed to be, but they're not under any of the "Get Add-Ons" "Extensions" "Appearance" "Plugins" or "User Scripts" sections. The add-ons that I can specifically remember are "LeechBlock", "Pocket", "Boomerang for Gmail", and "Firefox Reader". They're all still working, but I can't find them in the add-ons section to disable them or change the options. I installed "Fast Dial" as a test, and it seems to have installed fine, but it likewise does not show up in any of the add-ons sections.

All Replies (3)

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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":

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.

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That did the trick! I'd seen something similar to this in another question, but it was old enough that all of the file extensions were different so I was a bit reluctant to follow the same path. Thanks for the help.

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You're welcome