I have been using Firefox as my browser for as long as I can remember and yesterday it became semi-unresponsive (would not load). Then after restarting my computer and doing everything else I could think of - I got it to load and my previous session was restored. All the tabs were there . . . but none of them would respond. In CONTROL PANEL I even tried REFRESHING Mozilla Firefox short of Uninstalling. (That did nothing.) I tried downloading the latest version. It installed . . . , but, the old one is GONE. The new one DOESN'T WORK. In the search box it suggests youtube, facebook, etc. . . . NONE OF THEM WORK.
i want my old trusty firefox back
由 jhn.herring 於 修改
Have you tried Firefox in Safe Mode? https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode#w_how-to-start-firefox-in-4troubleshoot-modesf5safe-modesf
Also try using a different Windows account to see if you have the same issues. What security software are you running?
You can check for issues caused by a corrupted or incomplete Visual C++ installation that is missing runtime components (Redistributable Packages) required by Firefox, especially VCRUNTIME140_1.dll.
See "Visual Studio 2015, 2017, 2019, and 2022":
You may also have to install the Visual Studio 2013 Redistributable Package. You need to reboot the computer.
It is possible that your firewall or other security software blocks or restricts Firefox without informing you, possibly after detecting changes (update) to the Firefox application. Remove all rules for Firefox from the permissions list in the firewall and let your firewall ask again for permission to get full, unrestricted, access for Firefox and the plugin-container process and the updater process.