We're sorry to hear that Firefox is crashing. In order to assist you better, please follow the steps below to provide us crash IDs to help us learn more about your crash.

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

1. Enter about:crashes in the Firefox address bar and press Enter. A list of Submitted/Unsubmitted Crash Reports will appear, similar to the one shown below.
2. Copy the 5 most recent Submitted Report IDs that start with bp- and then go back to your forum question and paste those IDs into the "Post a Reply" box.

Note: If a recent Report ID does not start with bp- click on it to submit the report.

(Please don't take a screenshot of your crashes, just copy and paste the IDs. The below image is just an example of what your Firefox screen should look like.)

Thank you for your help!

More information and further troubleshooting steps can be found in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.

Log into other accounts numerous times due to crashing.

Are you saying you are being logged out?

Your ‘logged-in’ status is stored in special cookies. If the cookie is removed, you are logged out.

You may be in Private Browsing mode or told Firefox not to remember.

Type about:preferences#privacy<enter> in the address bar. The button next to History, select Use Custom Settings.

Turn off Always Use Private Browsing Mode Turn on Remember My Browsing And Download History At the bottom of the page, turn on Clear History When Firefox Closes. At the far right, press the Settings button. Turn on ONLY Cache and Form And Search History leaving the others off.

Macs: Make sure you install Firefox properly and that you do not run Firefox from within the DMG (Disk Images) file. https://support.mozilla.org/en-US/kb/how-download-and-install-firefox-mac

bp-d9930561-c842-4e42-81b3-54eb10211122 11/22/2021, 9:34 AM View bp-756e4af5-f074-43f8-b77e-899560211119 11/19/2021, 2:54 PM View bp-e882c99a-d222-4e87-81fd-4f4a70211117 11/17/2021, 9:45 AM View bp-910d46ed-6ea9-458a-b449-5106a0211113 11/13/2021, 1:33 PM View bp-2a52274b-d76d-44ba-9c01-45af80181109 11/8/2018, 9:55 PM View bp-d3734c00-cb22-4c50-8b2a-f05a30180628 6/27/2018, 10:09 PM View bp-7d309b07-3f6d-487b-ad0c-453510211122 11/22/2021, 1:44 PM View bp-301d789b-2bb0-41fc-a3be-e71e90211122 11/22/2021, 1:44 PM View

bp-d9930561-c842-4e42-81b3-54eb10211122 = Uptime 74 seconds (1 minute and 14 seconds) bp-e882c99a-d222-4e87-81fd-4f4a70211117 = Uptime 75 seconds (1 minute and 15 seconds) bp-910d46ed-6ea9-458a-b449-5106a0211113 = Uptime 75 seconds (1 minute and 15 seconds) bp-7d309b07-3f6d-487b-ad0c-453510211122 = Uptime 74 seconds (1 minute and 14 seconds)

Signature: shutdownhang | nsThread::Shutdown | mozilla::LazyIdleThread::ShutdownThread

MOZ_CRASH Reason (Sanitized) : MOZ_CRASH(Shutdown hanging after all known phases and workers finished.)

Crash Reason EXCEPTION_BREAKPOINT

IPSEng32.dll = Symantec Intrusion Detection

This is for Sumo's Related Bugs 1584377 RESOLVED FIXED Crash in [@ shutdownhang | nsThread::Shutdown | mozilla::LazyIdleThread::ShutdownThread]

1567491 NEW --- Crash in [@ shutdownhang | nsThread::Shutdown | mozilla::LazyIdleThread::ShutdownThread] +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ bp-756e4af5-f074-43f8-b77e-899560211119 = Uptime 15 seconds Signature: _ftol2

Crash Reason STATUS_STACK_BUFFER_OVERRUN / FAST_FAIL_GUARD_ICALL_CHECK_FAILURE

IPSEng32.dll = Symantec Intrusion Detection

This is for Sumo's Related Bugs 1248241 REOPENED --- crash in _ftol2 in 45.0b5 with particular AMD gpus

540814 RESOLVED WORKSFORME Crash when reading downloads.sqlite containing a file associated with Alcohol 120% [@ _ftol2 ]

533035 RESOLVED FIXED Extensions/libraries/plugins might enable FPU/SSE2 exceptions, causing floating-point operations to crash. fixes for crashes [@ isPromoteInt ] [@ _ftol2 ] [@ JS_dtobasestr] and others +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ bp-2a52274b-d76d-44ba-9c01-45af80181109 bp-d3734c00-cb22-4c50-8b2a-f05a30180628

We couldn't find the crash report for the Crash ID you requested.

Basically, a Shutdown hang means something is not responding/closing properly.

Use these links to create a new profile. Use this new profile as is. Is the problem still there?

https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible

http://kb.mozillazine.org/Profile_folder_-_Firefox#Navigating_to_the_profile_folder

https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

Type about:profiles<enter> in the address bar.