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None of my extentions are working in Firefox 43.

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I upgraded to Firefox 43 yesterday and found out that it is in fact a BETA edition. Since I have upgraded, I have had nothing but issues. None of my extentions work, from xKit for Tumblr to a simple adblocker. Any site I go on is incredibly slow and always crashes. Is there anyway I can go back to a non BETA version of Firefox? Or does anyone know when Firefox will come out of BETA.

I upgraded to Firefox 43 yesterday and found out that it is in fact a BETA edition. Since I have upgraded, I have had nothing but issues. None of my extentions work, from xKit for Tumblr to a simple adblocker. Any site I go on is incredibly slow and always crashes. Is there anyway I can go back to a non BETA version of Firefox? Or does anyone know when Firefox will come out of BETA.

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Firefox 43 was released this past Tuesday the 15th - it's not a Beta version.

See if this KB article helps you enable those extensions. https://support.mozilla.org/en-US/kb/add-on-signing-in-firefox

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Try to start Firefox in Safe Mode by holding down the Shift (Mac: Options) key to see if that helps.


It is possible that your firewall or other security software blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full, unrestricted, access to install for Firefox and the plugin-container process and the updater process.

See: