Mozilla Connect

Oooops! There is a "Refresh Firefox" button you can try before a full reinstall, but it will uninstall all your extensions.

Try going to Help|More Troubleshooting Information|Clear startup cache, then restart Firefox. I had a problem with security certificate failures on multiple sites after upgrading to 137.0, this solved the issue. YMMV, of course.

"Clear startup cache" and restart Firefox has cured the problem.

No, home system. These and many other tabs. Firefox currently unusable.

Same problem here after upgrading to Firefox 137.0. on Window11, Processor AMD Ryzen Threadripper 3960X 24-Core Processor 3.80 GHzInstalled RAM 32.0 GB (31.9 GB usable)System type 64-bit operating system, x64-based processorPen and touch No pen or to...