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; https://support.mozilla.org/en-US/kb/firefox-crashes-asking-support

Report ID Date Submitted bp-86c64c3f-acb4-4e65-86eb-6efbd0190408 08-Apr-19, 10:38 PM bp-73e49b22-fb77-401a-aaa4-9a0c50190406 06-Apr-19, 7:45 PM

i just submit 2 of all reporters. it still come when closing Firefox normally

Product Firefox Release Channel release Version 66.0.2 Build ID 20190326175229 (2019-03-26)

Mon, 08 Apr 2019 19:34:24 GMT bp-86c64c3f-acb4-4e65-86eb-6efbd0190408 Sat, 06 Apr 2019 16:40:13 GMT bp-73e49b22-fb77-401a-aaa4-9a0c50190406

Signature: shutdownhang | mozilla::SpinEventLoopUntil<T> | mozilla::dom::quota::QuotaManager::ShutdownObserver::Observe

MOZ_CRASH Reason (Sanitized) MOZ_CRASH(Shutdown hanging before starting.)

Crash Reason EXCEPTION_BREAKPOINT

This is for Sumo's Related Bugs 1487194 NEW --- Crash in shutdownhang | mozilla::SpinEventLoopUntil<T> | mozilla::dom::quota::QuotaManager::ShutdownObserver::Observe

1411908 RESOLVED FIXED shutdownhang | NtWaitForAlertByThreadId | mozilla::dom::quota::QuotaManager::ShutdownObserver::Observe

A Shutdown hang normally means that something is taking too long to do its job. The browser then forces a shutdown.

Are your settings to clear history when the browser closes?

aah, actually Firefox closes quickly when i press close button but now i test it with task manager, it really took too long to disappear from task manager exactly in the memory (RAM) , after it gone, reporter come.

And no about my settings to clear any data when the browser closes.

I test other browsers they took about 30 seconds to disappear from task manager while Firefox takes 1 minute. is it normal? or my ram is slow? or after updating Firefox, Firefox added the reporter to come after 1 minute. because Firefox takes bigger memory from other browsers.

https://support.mozilla.org/en-US/kb/firefox-slow-how-make-it-faster

https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix

https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-ram

https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding

https://support.mozilla.org/en-US/kb/firefox-takes-long-time-start-up