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Mac OS Montery (and before): Firefox is freezing and then crashing whenever going full screen.

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  • 1 has this problem
  • 3 views
  • Last reply by jonzn4SUSE

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Hello,

Currently running MacOS Montery but the problem was still occurring on previous versions.

Whenever I use the green top left button to enter full-screen, the app immediately freezes and either crashes or has to be manually force quit. There are no reports in about:crashes and I there has been no success with troubleshooting mode or switching versions of the Firefox application.

Machine Info: MacBook Pro (16-inch, 2019) Processor: 2.6 GHz 6-Core Intel Core i7 Memory: 16 GB 2667 MHz DDR4 Graphics: Intel UHD Graphics 630 1536 MB

Any help towards a solution would be appreciated. Thanks!

Hello, Currently running MacOS Montery but the problem was still occurring on previous versions. Whenever I use the green top left button to enter full-screen, the app immediately freezes and either crashes or has to be manually force quit. There are no reports in about:crashes and I there has been no success with troubleshooting mode or switching versions of the Firefox application. Machine Info: MacBook Pro (16-inch, 2019) Processor: 2.6 GHz 6-Core Intel Core i7 Memory: 16 GB 2667 MHz DDR4 Graphics: Intel UHD Graphics 630 1536 MB Any help towards a solution would be appreciated. Thanks!

Chosen solution

This is a shoot in the dark, but see if this setting makes a difference. see screenshot

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jonzn4SUSE said

Have you tried running Firefox in Safe Mode? https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode#search Also, clear the browser cache. https://support.mozilla.org/en-US/kb/clear-cookies-and-site-data-firefox

I have tried both (and a clean install) and the problem appears to persist.

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Do you have the same issue under a different Mac account on the same computer?

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Let me see how to trace a process on my mac.

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jonzn4SUSE said

Do you have the same issue under a different Mac account on the same computer?

It does happen with other accounts; just tested!

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Chosen Solution

This is a shoot in the dark, but see if this setting makes a difference. see screenshot

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jonzn4SUSE said

This is a shoot in the dark, but see if this setting makes a difference. see screenshot

That seems to have worked! Thanks for your help!

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LMAO!!!

Modified by jonzn4SUSE

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