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Cannot enable addons disabled in latest update.

  • 1 reply
  • 1 has this problem
  • Last reply by cor-el

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I see that at some point, probably the latest Firefox update, nearly all addons are disabled, and have no ability to re enable. Just as an example, "Downthemall". The "..." menu only has remove or report. Same for Adblock plus, back is close, dozens of others. Go to the page, eg and install turns into "enable" which does nothing as well.

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You can check for problems with the extensions registry files in the profile folder.

Try to to reset the extensions registry and rename extensions.json (extensionsOLD.json) and rename/remove previously used extensions files like extensions.ini and extensions.sqlite when present and rename/remove compatibility.ini in the Firefox profile folder with Firefox closed.

New files will be created when required.

See "corrupt extension files":

You can check for possible updates in case of issues.

  • click the cogwheel button (left of the Search bar) on the about:addons page to "Check for updates"

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.