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None of my extensions work now

  • 3 replies
  • 1 has this problem
  • Last reply by FredMcD

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Not sure what happened. None of my extensions work. Some don't even load a drop-down menu like they used to, my password manager is broken. Ublock origins says there is nothing to block when there clearly is plenty to block on the page, etc. I use the exact same extensions in Chrome and Chrome still doesn't break when using extensions. When was the last major FF update?

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Avira antivirus and its bundled softwares: I have disabled Avira Antivirus, the Firewall and the Avira navigator protection and have entered into my LinkedIn account. Firefox didn’t ask me to memorize my password, it didn’t displayed the password manager. So Avira seems not to be responsible for interfering with Firefox. The next step should be to uninstall Avira and to install another antivirus software like Avast or AVG, but I can’t for the moment.

Reset the Master Password:I did it, no improvement. Use the Profile Manager to create and remove Firefox profiles: “firefox.exe –P opens just a new window on my computer. You wrote: Accept the default location offered and choose some short name such as new-one-2016”. Firefox didn’t asked me to accept a default location or to choose a name, a new windows were opened as if I clicked the Firefox launching icon. Obviously, Firefox had the same behavior, no password manager displayed. For your information, I can enter into the password manager window in order to see all the passwords which should be recorded. In my case, this window is empty.

Cookies: I can’t delete the cookies being into Firefox, with the Firefox tool. I can delete the cookies with Google Chrome.

Clean Re-Install: I have reinstalled Firefox following the written process, no improvement.

Firefox repair: I have repaired Firefox with the Firefox site, just after having written my text here-above, as a last chance. The password manager WORKS fine now!!!! It asks me the passwords and I can see them in the password manager window…

I hope resolve your problem then reply me.

Thank you!


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no one you know said

None of my extensions work . . . . .

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

Type about:support in the address bar and press enter.

Under the page logo on the left side, you will see Application Basics. Under this find Profile Folder. To its right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.

Windows: Show Folder; Linux: Open Directory; Mac: Show in Finder

Linux: Under the page logo on the left side, you will see Application Basics. Under this find Profile Directory. To its right press the button Open Directory.

Delete all extensions* files and compatibility.ini in the Firefox profile folder to reset the extensions registry.

New files will be created when required.

After, restart Firefox.

See "Corrupt extension files":

You will have to approve the updating one last time.


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ARMAN KHAN Are you having the same problem?


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