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Firefox 78.15.0esr (64-bit) constantly crashing on Mac El Capitan when I try to attach an image

  • 6 replies
  • 1 has this problem
  • 104 views
  • Last reply by cor-el

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Firefox has been my favourite browser for years but I am about to uninstall and kick it to the curb!!!

Every time I want to attach/insert an image (on many different sites/platforms/apps) it freezes ~ I have to shut down and start again, losing whatever I have been working on. I have uninstalled and reinstalled a few times and have checked ~ all is up to date.

Any advice would be greatly appreciated!

Thanks a mil!

Firefox has been my favourite browser for years but I am about to uninstall and kick it to the curb!!! Every time I want to attach/insert an image (on many different sites/platforms/apps) it freezes ~ I have to shut down and start again, losing whatever I have been working on. I have uninstalled and reinstalled a few times and have checked ~ all is up to date. Any advice would be greatly appreciated! Thanks a mil!

Chosen solution

Your Mac OS X 10.11 platform is no longer supported, so you can no longer update Firefox beyond Firefox 78 ESR (update channel: mozilla-mac-eol-esr1). Current Firefox releases require Mac OS X 10.12 and newer.

Read this answer in context 👍 0

All Replies (6)

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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.

Please, Do not post a screenshot ! !

aboutcrashesFx57

For more help on crash reports, see; https://support.mozilla.org/en-US/kb/firefox-crashes-asking-support

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Start Firefox using Troubleshoot(Safe) Mode {web link}

A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?

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Chosen Solution

Your Mac OS X 10.11 platform is no longer supported, so you can no longer update Firefox beyond Firefox 78 ESR (update channel: mozilla-mac-eol-esr1). Current Firefox releases require Mac OS X 10.12 and newer.

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I tried this but it does not show anything that would be related to the problem ~ only 3 reports and they are all from last year or earlier in 2021, nothing for the 10+ times in last 3 months ~ thanks anyway!

FredMcD said

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. Please, Do not post a screenshot ! !
aboutcrashesFx57
For more help on crash reports, see; https://support.mozilla.org/en-US/kb/firefox-crashes-asking-support
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FredMcD said

Start Firefox using Troubleshoot(Safe) Mode {web link} A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?

OK!! So I was able to establish that it doesn't give a problem when in safe mode! In light of @cor-el answer that my version no longer supported, what can I do to rectify .. I was about to uninstall and use Bravo?!!

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You can try to disable hardware acceleration in Firefox.

Close and restart Firefox after modifying the setting to make changes effective.


If it works in Troubleshoot Mode and in normal mode with all extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) disabled then try to find which extension is causing the problem by enabling one extension at a time until the problem reappears.

Close and restart Firefox after each change via one of these:

  • "3-bar" menu button -> Exit (Power button)
  • Windows: File -> Exit
  • Mac: Firefox -> Quit Firefox
  • Linux: File -> Quit