Hi there,

Sorry to hear that the websites don't work as expected. Please follow the steps below to troubleshoot the issue.

1. Please check if you have Enhanced Tracking Protection (ETP) enabled. You can do that by clicking the shield icon at the left of the address bar.
   • If ETP is enabled, try disabling it.
2. If the problem is not fixed, try clearing Firefox cache.
3. If it does not help, also try clearing cookies and data for the website you experience troubles with (warning: you will be logged out on this website).
4. If it also does not help, try running Firefox in Troubleshoot Mode.

Does it help? Looking forward to your update!

What happens on this test site? https://app.zoom.us/test Site works for me. see screenshot Are you having only login issues?

Thank you both.

Denys, I turned off ETP, but it had no effect and when I logged out and logged back in ETP was reset. I clear cookies, history, etc. whenever I close Firefox. I then ran Zoom in Troubleshoot Mode and it worked properly but when I restarted Firefox and tried to log in the problem returned. Does this mean I have to run this mode every time I want to go to Zoom or any other site that doesn't work without it?

Jon, when I ran the test Zoom link it worked properly but that doesn't help for my regular Zoom login.

Also, was there some recent change to Firefox that could cause these issues? I am running the current version, 145.0.1 (64-bit).

If your problem did not occur in Troubleshoot Mode, the likely cause is an extension, theme or hardware acceleration. See this article for further troubleshooting steps.