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Firefox crashes and does not shut down when closed

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Windows 10, Firefox 66.0.1 crashes and does not shut down when closed, with these 2 error messages: 1) Mozilla Crash Reporter (all boxes are checked)

When browser is reopened another error message appears: 2) Close Firefox: Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window.

This appears even after a long delay before restarting Firefox. I have gone through the suggested list of fixes, with no effect.

Crash reports THIS YEAR, older ones date to Feb 2018 : There has been ZERO contact from Mozilla about these reports. bp-a7bc6424-38eb-4584-989e-7d1f80190324 3/24/2019, 12:48 PM View bp-3d058cea-c9e6-475e-bcf3-181390190324 3/24/2019, 12:34 PM View bp-ea5e178b-b5ac-4dcd-9f54-482180190324 3/24/2019, 12:04 PM View bp-df4ec509-cd35-4781-892a-956260190324 3/24/2019, 11:20 AM View bp-68f73f30-afcc-4a4d-905d-d04ae0190324 3/24/2019, 11:08 AM View bp-f2c2eb46-48c5-4c19-b8e1-c8b290190321 3/20/2019, 9:01 PM View bp-ceeb9796-5c8e-49c2-b3d5-842710190317 3/17/2019, 2:21 PM View bp-0229454e-ff31-4c2e-b8b5-ff61e0190317 3/17/2019, 12:53 PM View bp-3c0749fc-5ae3-4270-8caa-f4cc50190316 3/16/2019, 1:27 PM View bp-e6bae4ff-162f-43b4-8c95-add040190316 3/16/2019, 1:15 PM View bp-1af67eef-dd20-41c2-a9ab-20dc30190316 3/16/2019, 10:37 AM View bp-cac7dcac-6905-4047-8168-903df0190316 3/16/2019, 10:21 AM View bp-7ef55f1a-c112-4274-bd5c-e583b0190315 3/14/2019, 9:32 PM View bp-b001c84b-0af8-40b7-9f03-aef040190314 3/14/2019, 6:19 PM View bp-f4ff9526-b972-42a0-8ed5-056780190314 3/14/2019, 7:36 AM View bp-d4ba761f-2b95-4d4e-8d34-ff6fb0190312 3/12/2019, 6:24 AM View bp-e49763df-0553-4add-8663-d6fcd0190311 3/11/2019, 5:20 PM View bp-9fd42285-e5b7-4e4d-840b-527350190311 3/11/2019, 4:56 PM View bp-8573242f-583e-44a9-be8d-abfa90190303 3/2/2019, 7:06 PM View bp-21beab5b-544f-4dea-842f-f26260190301 2/28/2019, 10:38 PM View bp-182b3e0c-04d4-40f5-94ca-1f5a90190301 2/28/2019, 10:08 PM View bp-72db14ff-0ff5-48b8-bb01-e803e0190227 2/26/2019, 7:58 PM View bp-5d905533-7f25-4041-bb20-3602a0190225 2/25/2019, 8:11 AM View bp-b2a6161b-df17-4c92-bd8a-1df390190225 2/25/2019, 8:10 AM View bp-0ac7a875-0eae-4cad-9705-951390190224 2/24/2019, 11:21 AM View bp-ee153af5-da1c-4685-93c4-ab2fa0190223 2/23/2019, 5:55 PM View bp-bd6abde9-a9dd-4364-853c-293390190223 2/23/2019, 5:47 PM View bp-50b03a98-f076-4658-9b56-9326d0190223 2/23/2019, 2:09 PM View bp-b6de254f-259a-4e0e-a64a-24f400190221 2/20/2019, 9:52 PM View bp-1bc0c1a9-4925-4fdf-82e1-2c8fa0190219 2/18/2019, 7:13 PM View bp-6289dca9-bde1-455f-96e9-c84270190217 2/17/2019, 5:29 PM View bp-d3654e50-580b-4455-8faa-9426f0190217 2/17/2019, 4:00 PM View bp-13fa38b6-5ea2-46d5-bd6d-99a880190217 2/17/2019, 3:42 PM View bp-7e975766-9366-43b4-88f0-755ea0190217 2/17/2019, 3:32 PM View bp-10366729-cfa4-4d68-8217-5474f0190217 2/17/2019, 3:27 PM View bp-a44507a2-db63-4571-9800-897c00190217 2/17/2019, 3:23 PM View bp-8e0d3faa-aae2-432b-aca6-afb8b0190217 2/16/2019, 8:31 PM View bp-5605cad2-4bf3-4a75-87fb-fe99f0190216 2/16/2019, 10:48 AM View bp-93d9cb58-669d-4a98-b9f1-ffec50190216 2/15/2019, 10:26 PM View bp-9f763578-dad2-4440-9fc5-2cc3c0190216 2/15/2019, 10:15 PM View bp-ede2137c-6802-416b-9d73-aa5530190216 2/15/2019, 10:15 PM View bp-f0a095e6-4f1c-455d-a15d-31e480190216 2/15/2019, 10:15 PM View bp-9c772a93-0e7c-4e2e-b4f7-e18d30190216 2/15/2019, 10:15 PM View bp-612f308e-4b69-4d4f-b898-d402a0190216 2/15/2019, 10:15 PM View bp-953e7d65-7058-4146-9914-d2ea10190216 2/15/2019, 10:15 PM View bp-fce3816d-8c0d-4f95-81d1-e1b790190216 2/15/2019, 10:15 PM View bp-65ca84ba-c216-4826-a59d-a1dcc0190216 2/15/2019, 10:15 PM View bp-cab01958-987e-4c50-9734-bd2fe0190216 2/15/2019, 10:15 PM View bp-19cbf0f3-37f4-4010-9e4d-c65490190216 2/15/2019, 10:13 PM View bp-b34453c8-f9fa-4616-ae6f-228be0190209 2/9/2019, 3:45 PM View bp-4f30ece9-de33-4de2-8117-cc7be0190207 2/7/2019, 12:28 AM

Windows 10, Firefox 66.0.1 crashes and does not shut down when closed, with these 2 error messages: 1) Mozilla Crash Reporter (all boxes are checked) When browser is reopened another error message appears: 2) Close Firefox: Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window. This appears even after a long delay before restarting Firefox. I have gone through the suggested list of fixes, with no effect. Crash reports THIS YEAR, older ones date to Feb 2018 : There has been ZERO contact from Mozilla about these reports. bp-a7bc6424-38eb-4584-989e-7d1f80190324 3/24/2019, 12:48 PM View bp-3d058cea-c9e6-475e-bcf3-181390190324 3/24/2019, 12:34 PM View bp-ea5e178b-b5ac-4dcd-9f54-482180190324 3/24/2019, 12:04 PM View bp-df4ec509-cd35-4781-892a-956260190324 3/24/2019, 11:20 AM View bp-68f73f30-afcc-4a4d-905d-d04ae0190324 3/24/2019, 11:08 AM View bp-f2c2eb46-48c5-4c19-b8e1-c8b290190321 3/20/2019, 9:01 PM View bp-ceeb9796-5c8e-49c2-b3d5-842710190317 3/17/2019, 2:21 PM View bp-0229454e-ff31-4c2e-b8b5-ff61e0190317 3/17/2019, 12:53 PM View bp-3c0749fc-5ae3-4270-8caa-f4cc50190316 3/16/2019, 1:27 PM View bp-e6bae4ff-162f-43b4-8c95-add040190316 3/16/2019, 1:15 PM View bp-1af67eef-dd20-41c2-a9ab-20dc30190316 3/16/2019, 10:37 AM View bp-cac7dcac-6905-4047-8168-903df0190316 3/16/2019, 10:21 AM View bp-7ef55f1a-c112-4274-bd5c-e583b0190315 3/14/2019, 9:32 PM View bp-b001c84b-0af8-40b7-9f03-aef040190314 3/14/2019, 6:19 PM View bp-f4ff9526-b972-42a0-8ed5-056780190314 3/14/2019, 7:36 AM View bp-d4ba761f-2b95-4d4e-8d34-ff6fb0190312 3/12/2019, 6:24 AM View bp-e49763df-0553-4add-8663-d6fcd0190311 3/11/2019, 5:20 PM View bp-9fd42285-e5b7-4e4d-840b-527350190311 3/11/2019, 4:56 PM View bp-8573242f-583e-44a9-be8d-abfa90190303 3/2/2019, 7:06 PM View bp-21beab5b-544f-4dea-842f-f26260190301 2/28/2019, 10:38 PM View bp-182b3e0c-04d4-40f5-94ca-1f5a90190301 2/28/2019, 10:08 PM View bp-72db14ff-0ff5-48b8-bb01-e803e0190227 2/26/2019, 7:58 PM View bp-5d905533-7f25-4041-bb20-3602a0190225 2/25/2019, 8:11 AM View bp-b2a6161b-df17-4c92-bd8a-1df390190225 2/25/2019, 8:10 AM View bp-0ac7a875-0eae-4cad-9705-951390190224 2/24/2019, 11:21 AM View bp-ee153af5-da1c-4685-93c4-ab2fa0190223 2/23/2019, 5:55 PM View bp-bd6abde9-a9dd-4364-853c-293390190223 2/23/2019, 5:47 PM View bp-50b03a98-f076-4658-9b56-9326d0190223 2/23/2019, 2:09 PM View bp-b6de254f-259a-4e0e-a64a-24f400190221 2/20/2019, 9:52 PM View bp-1bc0c1a9-4925-4fdf-82e1-2c8fa0190219 2/18/2019, 7:13 PM View bp-6289dca9-bde1-455f-96e9-c84270190217 2/17/2019, 5:29 PM View bp-d3654e50-580b-4455-8faa-9426f0190217 2/17/2019, 4:00 PM View bp-13fa38b6-5ea2-46d5-bd6d-99a880190217 2/17/2019, 3:42 PM View bp-7e975766-9366-43b4-88f0-755ea0190217 2/17/2019, 3:32 PM View bp-10366729-cfa4-4d68-8217-5474f0190217 2/17/2019, 3:27 PM View bp-a44507a2-db63-4571-9800-897c00190217 2/17/2019, 3:23 PM View bp-8e0d3faa-aae2-432b-aca6-afb8b0190217 2/16/2019, 8:31 PM View bp-5605cad2-4bf3-4a75-87fb-fe99f0190216 2/16/2019, 10:48 AM View bp-93d9cb58-669d-4a98-b9f1-ffec50190216 2/15/2019, 10:26 PM View bp-9f763578-dad2-4440-9fc5-2cc3c0190216 2/15/2019, 10:15 PM View bp-ede2137c-6802-416b-9d73-aa5530190216 2/15/2019, 10:15 PM View bp-f0a095e6-4f1c-455d-a15d-31e480190216 2/15/2019, 10:15 PM View bp-9c772a93-0e7c-4e2e-b4f7-e18d30190216 2/15/2019, 10:15 PM View bp-612f308e-4b69-4d4f-b898-d402a0190216 2/15/2019, 10:15 PM View bp-953e7d65-7058-4146-9914-d2ea10190216 2/15/2019, 10:15 PM View bp-fce3816d-8c0d-4f95-81d1-e1b790190216 2/15/2019, 10:15 PM View bp-65ca84ba-c216-4826-a59d-a1dcc0190216 2/15/2019, 10:15 PM View bp-cab01958-987e-4c50-9734-bd2fe0190216 2/15/2019, 10:15 PM View bp-19cbf0f3-37f4-4010-9e4d-c65490190216 2/15/2019, 10:13 PM View bp-b34453c8-f9fa-4616-ae6f-228be0190209 2/9/2019, 3:45 PM View bp-4f30ece9-de33-4de2-8117-cc7be0190207 2/7/2019, 12:28 AM
Attached screenshots

Modified by subi10

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Additional System Details

Installed Plug-ins

  • Shockwave Flash 32.0 r0

Application

  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0

More Information

FredMcD
  • Top 10 Contributor
4025 solutions 56252 answers

subi10 said

There has been ZERO contact from Mozilla

Crash reports are sent to the Mozilla servers for the techs to look over. They seldom contact the user

''subi10 [[#question-1254139|said]]'' <blockquote> There has been ZERO contact from Mozilla </blockquote> Crash reports are sent to the Mozilla servers for the techs to look over. They seldom contact the user
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FredMcD
  • Top 10 Contributor
4025 solutions 56252 answers

Some reports are too old to be of much use.


Product Firefox Release Channel release Version 66.0.1 Build ID 20190322013140 (2019-03-22) Buildhub data OS Windows 10 OS Version 10.0.17763

Sun, 24 Mar 2019 16:34:11 GMT bp-3d058cea-c9e6-475e-bcf3-181390190324

Sun, 24 Mar 2019 15:25:53 GMT bp-ea5e178b-b5ac-4dcd-9f54-482180190324

Signature: AsyncShutdownTimeout | Places Clients shutdown | sanitize.js: Sanitize on shutdown

Crash Reason EXCEPTION_BREAKPOINT

VCRUNTIME140.dll = Microsoft Visual C++

IPSEng64.dll = Symantec Intrusion Detection

This is for Sumo's Related Bugs 1524200 REOPENED --- Crash in AsyncShutdownTimeout | Places Clients shutdown | sanitize.js: Sanitize on shutdown

1507171 RESOLVED FIXED Crash in AsyncShutdownTimeout | Places Clients shutdown | sanitize.js: Sanitize on shutdown

1426941 RESOLVED INCOMPLETE Crash in AsyncShutdownTimeout | Places Clients shutdown | sanitize.js: Sanitize on shutdown

1404105 RESOLVED FIXED Crash in AsyncShutdownTimeout | Places Clients shutdown | sanitize.js: Sanitize,sanitize.js: Sanitize on shutdown

Some reports are too old to be of much use. ------------ Product Firefox Release Channel release Version 66.0.1 Build ID 20190322013140 (2019-03-22) Buildhub data OS Windows 10 OS Version 10.0.17763 Sun, 24 Mar 2019 16:34:11 GMT bp-3d058cea-c9e6-475e-bcf3-181390190324 Sun, 24 Mar 2019 15:25:53 GMT bp-ea5e178b-b5ac-4dcd-9f54-482180190324 Signature: AsyncShutdownTimeout | Places Clients shutdown | sanitize.js: Sanitize on shutdown Crash Reason EXCEPTION_BREAKPOINT VCRUNTIME140.dll = Microsoft Visual C++ IPSEng64.dll = Symantec Intrusion Detection This is for Sumo's Related Bugs 1524200 REOPENED --- Crash in AsyncShutdownTimeout | Places Clients shutdown | sanitize.js: Sanitize on shutdown 1507171 RESOLVED FIXED Crash in AsyncShutdownTimeout | Places Clients shutdown | sanitize.js: Sanitize on shutdown 1426941 RESOLVED INCOMPLETE Crash in AsyncShutdownTimeout | Places Clients shutdown | sanitize.js: Sanitize on shutdown 1404105 RESOLVED FIXED Crash in AsyncShutdownTimeout | Places Clients shutdown | sanitize.js: Sanitize,sanitize.js: Sanitize on shutdown
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FredMcD
  • Top 10 Contributor
4025 solutions 56252 answers

It looks like the browser is taking too long to do something. And so it (the watchdog) thinks the browser froze.

Does this happen during normal browsing, during shutdown, reading/watching something, when you walk away . . . . .


Start Firefox in Safe Mode {web link}

A small dialog should appear. Click Start In Safe Mode (not Refresh).

Just let the browser sit there without doing anything. Is the problem still there?

It looks like the browser is taking too long to do something. And so it (the watchdog) thinks the browser froze. Does this happen during normal browsing, during shutdown, reading/watching something, when you walk away . . . . . ----------- [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). Just let the browser sit there without doing anything. Is the problem still there?
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cor-el
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  • Moderator
16992 solutions 153423 answers

Those crashes are reports about a problem with closing Firefox. Closing takes to long to finish and a crash is forced, so this is more a hang.

Firefox 66.0.1 Crash Report [@ AsyncShutdownTimeout | Places Clients shutdown | sanitize.js: Sanitize on shutdown ]

Are you using "Clear history when Firefox closes" to clear any personal data like the history?

Those crashes are reports about a problem with closing Firefox. Closing takes to long to finish and a crash is forced, so this is more a hang. Firefox 66.0.1 Crash Report [@ AsyncShutdownTimeout | Places Clients shutdown | sanitize.js: Sanitize on shutdown ] Are you using "Clear history when Firefox closes" to clear any personal data like the history?
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Question owner

FredMcD said

subi10 said
There has been ZERO contact from Mozilla

Crash reports are sent to the Mozilla servers for the techs to look over. They seldom contact the user

What is the function of the checked box on the Crash Reprot labeled 'Allow Mozilla to contact me about this report' ?

''FredMcD [[#answer-1207830|said]]'' <blockquote> ''subi10 [[#question-1254139|said]]'' <blockquote> There has been ZERO contact from Mozilla </blockquote> Crash reports are sent to the Mozilla servers for the techs to look over. They seldom contact the user </blockquote> What is the function of the checked box on the Crash Reprot labeled 'Allow Mozilla to contact me about this report' ?
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Question owner

FredMcD said

It looks like the browser is taking too long to do something. And so it (the watchdog) thinks the browser froze. Does this happen during normal browsing, during shutdown, reading/watching something, when you walk away . . . . .

Start Firefox in Safe Mode {web link}

A small dialog should appear. Click Start In Safe Mode (not Refresh).

Just let the browser sit there without doing anything. Is the problem still there?

The problem occurs only after I shut down the app and try to open again at a later time, sometimes hours later. Once I hit Close Firefox on the 'Already running but not responding' message the browser seems to function normally. I will try the safe mode again, since it was a couple of months age since I tried that.

''FredMcD [[#answer-1207834|said]]'' <blockquote> It looks like the browser is taking too long to do something. And so it (the watchdog) thinks the browser froze. Does this happen during normal browsing, during shutdown, reading/watching something, when you walk away . . . . . ----------- [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). Just let the browser sit there without doing anything. Is the problem still there? </blockquote> The problem occurs only after I shut down the app and try to open again at a later time, sometimes hours later. Once I hit Close Firefox on the 'Already running but not responding' message the browser seems to function normally. I will try the safe mode again, since it was a couple of months age since I tried that.
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Question owner

I reopened in Safe Mode, then closed the browser. Task Manager showed very high power usage of 27.5% for several minutes, then the background processes icons disappeared. Crash Report reappeared as usual.

I reopened in Safe Mode, then closed the browser. Task Manager showed very high power usage of 27.5% for several minutes, then the background processes icons disappeared. Crash Report reappeared as usual.
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Question owner

cor-el said

Those crashes are reports about a problem with closing Firefox. Closing takes to long to finish and a crash is forced, so this is more a hang. Firefox 66.0.1 Crash Report [@ AsyncShutdownTimeout | Places Clients shutdown | sanitize.js: Sanitize on shutdown ] Are you using "Clear history when Firefox closes" to clear any personal data like the history?

This had no effect.

''cor-el [[#answer-1207835|said]]'' <blockquote> Those crashes are reports about a problem with closing Firefox. Closing takes to long to finish and a crash is forced, so this is more a hang. Firefox 66.0.1 Crash Report [@ AsyncShutdownTimeout | Places Clients shutdown | sanitize.js: Sanitize on shutdown ] Are you using "Clear history when Firefox closes" to clear any personal data like the history? </blockquote> This had no effect.
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Question owner

I am using Norton Security and have Norton Safe Search enabled, no other Add-ons.

I am using Norton Security and have Norton Safe Search enabled, no other Add-ons.
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FredMcD
  • Top 10 Contributor
4025 solutions 56252 answers

subi10 said

What is the function of the checked box

We can't answer that.

subi10 said

I reopened in Safe Mode, then closed the browser.

FredMcD said

Just let the browser sit there without doing anything.

Leave it for a half hour.

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

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 leaving the others off.

''subi10 [[#answer-1207870|said]]'' <blockquote> What is the function of the checked box </blockquote> We can't answer that. ''subi10 [[#answer-1207882|said]]'' <blockquote> I reopened in Safe Mode, then closed the browser. </blockquote> ''FredMcD [[#answer-1207834|said]]'' <blockquote> Just let the browser sit there without doing anything. </blockquote> Leave it for a half hour. Type '''about:preferences#privacy'''<enter> in the address bar. The button next to '''History, ''' select '''Use Custom Settings. ''' 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''' leaving the others off.
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Question owner

I tried this twice with no effect.

I tried this twice with no effect.
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