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Firefox still crashing after refresh to Firefox 77 Mac OS

  • 5 replies
  • 1 has this problem
  • Last reply by FredMcD

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For about a year, Firefox tabs have been crashing fairly frequently (I laugh every time I send a crash report to Mozilla). Recently, these became more frequent: The tab crashes occurred several times a day, and the entire browser would crash several times a week.

(Firefox push updates sometimes crashed not only the browser but my entire Mac.)

Yesterday, I refreshed Firefox. It installed version 77. I have had some difficulty reinstalling 3 of my browser extensions, v. 77 doesn't seem to want them and I need to go through the install routine several times. It's difficult to turn the extensions on and off, too.

But that's not why I'm here. I'm here because after refreshing Firefox yesterday, yes, a Firefox tab crashed this morning.

I'm just about done spending any time troubleshooting Firefox. I don't want to go to Chrome but Firefox has become so unreliable, I may not have a choice. Mac OS 10.12.6 Sierra, Mac mini.

All Replies (5)

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hello crabpaws,

follow the step and link:

Users of Mozilla Firefox browser are confused when opening it but it closes or quits. So how to fix this Firefox crash Mac issue? Try these ways below:

  • Update Firefox Browser
  • Update Your Mac OS
  • Update Plugins
  • Update the Security Software
  • Use Safe Mode
  • Clean Install Firefox
  • Check Hardware
  • Report Crash Error

Please click to fully information regarded your problem :


I hope resolve your problem then reply me back.

Thank you!

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In the address bar, type about:crashes<enter>. Note: If any reports do not have BP- in front of the numbers/letters, click it to submit them.

The crash report is several pages of data. We need the report numbers to see the whole report.

Using your mouse, mark the most recent 7 - 10 Submitted crash reports, and copy them. Now go to the reply box and paste them in.


For more help on crash reports, see;

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Some problems occur when your Internet security program was set to trust the previous version of Firefox, but no longer recognizes your updated version as trusted. Now how to fix the problem: To allow Firefox to connect to the Internet again;

   Make sure your Internet security software is up-to-date (i.e. you are running the latest version).
   Remove Firefox from your program's list of trusted or recognized programs. For detailed instructions, see 

Configure firewalls so that Firefox can access the Internet. {web link}

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Thanks, FredMcD

3AEAA4F5-8487-42C9-9AC5-41050A9E38B5 6/5/20, 12:22 PM

29B7FE68-4D0F-4736-A755-3FABBB81C267 6/5/20, 1:07 AM

5D6FF9B8-C0CD-4034-AAB8-3BDA6467324F 6/4/20, 9:41 PM

17FDAAE8-0D6C-4299-9665-7B292EFC2177 6/4/20, 6:14 PM

C57B84EC-800C-4DF0-9478-ECEA558B70EE 6/4/20, 6:01 PM

ACA6EF70-DDCC-488E-AE9B-18D4EA52E070 6/4/20, 6:01 PM

D36FE93A-DD69-42FA-AB9D-D49ED33D8D35 6/4/20, 6:01 PM

A22E923D-007E-4EE6-904F-7657B5412714 6/4/20, 11:52 AM

E885A45A-BD2E-4DEB-9DCB-CF86F58BD8CF 6/4/20, 10:24 AM 29B32F93-1BEC-49C8-8736-89E788B0196C 6/3/20, 5:39 PM 75C0A4AB-1135-49C8-BE82-E76A20EE43EF 6/3/20, 5:28 PM E5BE98A7-DC79-4E6C-9FEE-075740836BC2 6/3/20, 5:06 PM D82CFAE2-7E3A-461B-903E-2BACA0551824 6/2/20, 6:51 PM A0B1486A-964C-42AF-B216-412CD2F4C6D6 6/2/20, 6:35 PM DEB79E95-E651-4F97-8AF9-B975017678EA 6/2/20, 6:03 PM B79EE819-03FD-4DDE-8C45-F2F83C681ABB 6/2/20, 4:39 PM 6F11246E-E4C0-479D-BFCA-742D61B3DA69 6/2/20, 12:55 PM 2643A110-A7FE-4BD8-809E-BF7683D9A2AF 6/2/20, 12:54 PM

Modified by crabpaws1

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FredMcD said

Note: If any reports do not have BP- in front of the numbers/letters, click it to submit them. The crash report is several pages of data. We need the report numbers to see the whole report.