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FireFox stuck in background

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I open FF (happens in Safe mode too), and after a couple minutes of running it stops responding to input, but tabs on live websites continue to update content as expected. Then I use the task bar , right click and try to close, the confirmation box pops up but acts like it's stuck in the background, clicking on anything FF does nothing even though it's still running (usually). I've disabled all add-ons, and run in safe mode, same behavior. It acts like it's waiting for input from a process (thread) running in the background and I just can't get to it. Task Manager does not offer the option to bring each thread to the foreground to inspect. Patched to the latest version.

Any Ideas?

I open FF (happens in Safe mode too), and after a couple minutes of running it stops responding to input, but tabs on live websites continue to update content as expected. Then I use the task bar , right click and try to close, the confirmation box pops up but acts like it's stuck in the background, clicking on anything FF does nothing even though it's still running (usually). I've disabled all add-ons, and run in safe mode, same behavior. It acts like it's waiting for input from a process (thread) running in the background and I just can't get to it. Task Manager does not offer the option to bring each thread to the foreground to inspect. Patched to the latest version. Any Ideas?
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Additional System Details

Installed Plug-ins

All Disabled

Application

  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36

More Information

FredMcD
  • Top 10 Contributor
4340 solutions 61029 answers

First, make sure all programs are up to date. Windows and all others.


Start your Computer in safe mode with network support. Then start Firefox. Try Secure websites. Is the problem still there?

http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting Any Computer In Safe Mode; Free Online Encyclopedia

First, make sure all programs are up to date. Windows and all others. Start your '''Computer''' in safe mode with network support. Then start Firefox. Try '''Secure''' websites. Is the problem still there? http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting Any Computer In Safe Mode; Free Online Encyclopedia
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