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Current upgrade version is broken - how can I revert to prior version?

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Just now upgraded to Firefox 124.0.2 on Windows 10 - I am not sure what the problem is, but every website (excite Mozilla) is now labelled as "unsafe" by Malwarebytes, and I can no longer log into Gmail using Firefox (other browsers work fine.) How can I revert to a prior version? I could reinstall from a prior version using a old download, but then I lose all my bookmarks, etc.

Just now upgraded to Firefox 124.0.2 on Windows 10 - I am not sure what the problem is, but every website (excite Mozilla) is now labelled as "unsafe" by Malwarebytes, and I can no longer log into Gmail using Firefox (other browsers work fine.) How can I revert to a prior version? I could reinstall from a prior version using a old download, but then I lose all my bookmarks, etc.

Chosen solution

You can check the connection settings and check for possible issues with a Proxy or VPN service.

  • Settings -> General -> Network: Connection -> Settings

If you do not need to use a Proxy to connect to internet, select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.

See also:

You can do a malware scan, just to be sure.

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All Replies (3)

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Try changing DNS over HTTPS (DoH) to "Off" or "Max Protection" and in Connection Settings change "Use system proxy settings" to "No proxy".

Does it still happen in Troubleshoot Mode?

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Chosen Solution

You can check the connection settings and check for possible issues with a Proxy or VPN service.

  • Settings -> General -> Network: Connection -> Settings

If you do not need to use a Proxy to connect to internet, select "No Proxy" if "Use the system proxy settings" or one of the others do not work properly.

See also:

You can do a malware scan, just to be sure.

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Actually, the problem resolved itself for reasons unknown... I had rebooted multiple times, resetting Malwarebytes, etc. It somehow fixed itself when I logged into the only website that worked (Mozilla). Not sure why.