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Add-Ons not working, Can't download/install new ones

Posted

Last night around 10-ish my add-ons quit working suddenly. Now I remember something like this happened last month but I also saw it happened to several people so I wasn't worried. But I didn't see a topic about it this time (although I might not have looked well enough?) so I don't know if it's just me.

It won't let me try to install an alternative add-on, and if I right click it'll say to check my connection, but isn't my connection fine if I'm using the internet anyway? Right clicking it says it's a corruption issue.

Last night around 10-ish my add-ons quit working suddenly. Now I remember something like this happened last month but I also saw it happened to several people so I wasn't worried. But I didn't see a topic about it this time (although I might not have looked well enough?) so I don't know if it's just me. It won't let me try to install an alternative add-on, and if I right click it'll say to check my connection, but isn't my connection fine if I'm using the internet anyway? Right clicking it says it's a corruption issue.
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Additional System Details

Installed Plug-ins

  • Shockwave Flash 32.0 r0

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0

More Information

FredMcD
  • Top 10 Contributor
4254 solutions 59574 answers

Helpful Reply

The certificate used by the add-ons expired. https://support.mozilla.org/en-US/questions/1258165#answer-1218833 fixed the issue for my v54.

The certificate used by the add-ons expired. https://support.mozilla.org/en-US/questions/1258165#answer-1218833 fixed the issue for my v54.
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Question owner

Thank you thank you! It helped right away, all I had to do was add the extension to firefox.

Thank you thank you! It helped right away, all I had to do was add the extension to firefox.
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FredMcD
  • Top 10 Contributor
4254 solutions 59574 answers

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution more easily.

Thank you for contacting Mozilla Support.

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution more easily. Thank you for contacting Mozilla Support.
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cor-el
  • Top 10 Contributor
  • Moderator
17516 solutions 158398 answers
Why are you using this very old Firefox version with known security vulnerabilities? *https://www.mozilla.org/security/known-vulnerabilities/firefox.html *https://support.mozilla.org/en-US/kb/update-firefox-latest-version
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