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Firefox crashes

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Firefox tabs crash shortly after clicking on new tab + sign with no crash report. Firefox stays up, and presents msg Gah, your tab just crashed. We can help,..... restore tab. After clicking restore tab, it comes up and crashes immediately again. I removed all Mozilla directories and files and profile and all mozilla files under apps directory, and reinstalled and get same results. Started Firefox in safemode with same results. I am able to bring up troubleshooting page and then go to help pages from there but cannot link anywhere from there as it crashes the tab again with no crash reports. I ran malwarebytes and found no issues. I disabled browser.tab.xxx and that had no affect either. I don't know if it is specific to this level as I don't know when it was updated as it is my wife's PC and was probably on update automatically. Running latest level on Windows 10 Firefox level 65

Firefox tabs crash shortly after clicking on new tab + sign with no crash report. Firefox stays up, and presents msg Gah, your tab just crashed. We can help,..... restore tab. After clicking restore tab, it comes up and crashes immediately again. I removed all Mozilla directories and files and profile and all mozilla files under apps directory, and reinstalled and get same results. Started Firefox in safemode with same results. I am able to bring up troubleshooting page and then go to help pages from there but cannot link anywhere from there as it crashes the tab again with no crash reports. I ran malwarebytes and found no issues. I disabled browser.tab.xxx and that had no affect either. I don't know if it is specific to this level as I don't know when it was updated as it is my wife's PC and was probably on update automatically. Running latest level on Windows 10 Firefox level 65

Chosen solution

Tried Windows Safe mode and both 64.0.2 and 65 worked. Restarted with no safe / regular load and they both still worked. Thanks. Sorry I didn't try it a couple days ago. Explanation? Reason?

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Additional System Details

Application

  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:64.0) Gecko/20100101 Firefox/64.0

More Information

FredMcD
  • Top 10 Contributor
3984 solutions 55565 answers
Gah-Your-tab-just-crashed https://support.mozilla.org/en-US/kb/firefox-crashes-troubleshoot-prevent-and-get-help
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Question owner

FredMcd, I have done everything that was suggested at the url you posted. No clue.

FredMcd, I have done everything that was suggested at the url you posted. No clue.
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FredMcD
  • Top 10 Contributor
3984 solutions 55565 answers

Let’s do a full clean re-install;

Download Firefox For All languages And Systems {web link}

Save the file. Then Close Firefox.

Using your file browser, open the Programs Folder on your computer.

Windows: C:\Program Files C:\Program Files (x86) Note: Check Both Folders

Mac: Open the "Applications" folder. https://support.mozilla.org/en-US/kb/how-download-and-install-firefox-mac

Linux: Check your user manual. If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it. See Install Firefox on Linux; https://support.mozilla.org/en-US/kb/install-firefox-linux

If you downloaded and installed the binary package from the Firefox download page, simply remove the folder Firefox in your home directory. http://www.mozilla.org/firefox#desktop ++++++++++++++++++++++++++++ Look for, and remove any Mozilla or Firefox program folders. Do not remove the Mozilla Thunderbird folder if there is one.

Do Not remove any profile folders.

After rebooting the computer, run a registry scanner if you have one. Then run the installer. +++++++++++++++++++++++++++ If there is a problem, start your Computer in safe mode and try again.

http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode This shows how to Start all Computers in Safe Mode; Free Online Encyclopedia

Let’s do a full clean re-install; [http://www.mozilla.org/en-US/firefox/all/ Download Firefox For All languages And Systems] {web link} Save the file. Then '''Close Firefox. ''' Using your file browser, open the '''Programs Folder''' on your computer. '''Windows: ''' C:\Program Files C:\Program Files (x86) '''Note:''' Check Both Folders '''Mac: ''' Open the ''' "Applications" ''' folder. https://support.mozilla.org/en-US/kb/how-download-and-install-firefox-mac '''Linux: ''' Check your user manual. If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it. See Install Firefox on Linux; https://support.mozilla.org/en-US/kb/install-firefox-linux If you downloaded and installed the binary package from the Firefox download page, simply remove the folder Firefox in your home directory. http://www.mozilla.org/firefox#desktop ++++++++++++++++++++++++++++ Look for, and remove any '''Mozilla''' or '''Firefox''' program folders. Do not remove the '''Mozilla Thunderbird''' folder if there is one. '''Do Not''' remove any profile folders. After rebooting the computer, run a registry scanner if you have one. Then run the installer. +++++++++++++++++++++++++++ If there is a problem, start your '''Computer''' in safe mode and try again. http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode This shows how to Start all Computers in Safe Mode; Free Online Encyclopedia
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Question owner

Did all that except PC safemode. Didn't work. I then reloaded Firefox back level 64.02 This crashes same way except it gives a crash report. Submitted https://crash-stats.mozilla.com/report/index/f03ab991-aa4e-4eac-8efa-d9cb10190207

Did all that except PC safemode. Didn't work. I then reloaded Firefox back level 64.02 This crashes same way except it gives a crash report. Submitted https://crash-stats.mozilla.com/report/index/f03ab991-aa4e-4eac-8efa-d9cb10190207
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FredMcD
  • Top 10 Contributor
3984 solutions 55565 answers

Product Firefox Release Channel release Version 64.0.2 Build ID 20190108160530 (2019-01-08) OS Windows 8 OS Version 6.2.9200

bp-f03ab991-aa4e-4eac-8efa-d9cb10190207 Signature: jsimd_idct_islow_avx2

Uptime 3 seconds

Crash Reason EXCEPTION_ILLEGAL_INSTRUCTION

mbae.dll = Malwarebytes Anti-Exploit

This is for Sumo's Related Bugs 1520760 REOPENED --- crash on jsimd_idct_islow_avx2

Product Firefox Release Channel release Version 64.0.2 Build ID 20190108160530 (2019-01-08) OS Windows 8 OS Version 6.2.9200 bp-f03ab991-aa4e-4eac-8efa-d9cb10190207 Signature: jsimd_idct_islow_avx2 Uptime 3 seconds Crash Reason EXCEPTION_ILLEGAL_INSTRUCTION mbae.dll = Malwarebytes Anti-Exploit This is for Sumo's Related Bugs 1520760 REOPENED --- crash on jsimd_idct_islow_avx2
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FredMcD
  • Top 10 Contributor
3984 solutions 55565 answers

Update Malwarebytes. If the problem continues, disable it.

Update Malwarebytes. If the problem continues, disable it.
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Question owner

Disabled latest Malwarebytes and 64.0.2 still crashes and now does not give crash report. 65 crashes also.

Disabled latest Malwarebytes and 64.0.2 still crashes and now does not give crash report. 65 crashes also.
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FredMcD
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3984 solutions 55565 answers

Helpful Reply

Start Firefox in Safe Mode {web link}

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


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

[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode] {web link} A small dialog should appear. Click '''Start In Safe Mode''' (not Refresh). Is the problem still there? ---------------- 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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Chosen Solution

Tried Windows Safe mode and both 64.0.2 and 65 worked. Restarted with no safe / regular load and they both still worked. Thanks. Sorry I didn't try it a couple days ago. Explanation? Reason?

Tried Windows Safe mode and both 64.0.2 and 65 worked. Restarted with no safe / regular load and they both still worked. Thanks. Sorry I didn't try it a couple days ago. Explanation? Reason?
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FredMcD
  • Top 10 Contributor
3984 solutions 55565 answers

Helpful Reply

It could have been a corrupt file that was overwritten.

I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution more easily.

Thank you for contacting Mozilla Support.

It could have been a corrupt file that was overwritten. I am glad to hear that your problem has been resolved. If you haven't already, please select the answer that solves the problem. This will help other users with similar problems find the solution more easily. Thank you for contacting Mozilla Support.
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