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After every Firefox 34.0 reloading my add-ons have been switched off by unknown program or virus.

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  • Last reply by cor-el

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After every Firefox 34.0 reloading my add-ons have been switched off by unknown program or virus. Although i can switch them on and reboot firefox one more time to fix it, but it is a little bit boring. How can i solve this problem?

After every Firefox 34.0 reloading my add-ons have been switched off by unknown program or virus. Although i can switch them on and reboot firefox one more time to fix it, but it is a little bit boring. How can i solve this problem?

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Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.

You can try these free programs to scan for malware, which work with your existing antivirus software:

Microsoft Security Essentials is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.

Further information can be found in the Troubleshoot Firefox issues caused by malware article.

Did this fix your problems? Please report back to us!

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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.

You can use this button to go to the currently used Firefox profile folder: