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firefox will not start. Cannot end process in task manager

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As of this morning, I cannot get Firefox to work. I am using Windows 7. I click to start firefox and it looks like the program starts. It opens a Window with the minimize, maximize, and close buttons but the window contents are blank and the load icon appears. I can minimize and maximize the window but I cannot end the program. If I use CTRL-ALT-DEL, I can see that firefox.exe is running but I cannot end the task by selecting End Process. If I try to start another instance of Firefox, I get a warning box saying "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window."

Nothing I try will end the process.

I uninstalled and re-installed Firefox but the problem persists. I tried doing a fresh install with all previous add-ons and whatnot ignored but it still won't run. I've tried running it with the anti-virus disabled as well as with Windows in Safe Mode but it won't work.

Any ideas?

As of this morning, I cannot get Firefox to work. I am using Windows 7. I click to start firefox and it looks like the program starts. It opens a Window with the minimize, maximize, and close buttons but the window contents are blank and the load icon appears. I can minimize and maximize the window but I cannot end the program. If I use CTRL-ALT-DEL, I can see that firefox.exe is running but I cannot end the task by selecting End Process. If I try to start another instance of Firefox, I get a warning box saying "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window." Nothing I try will end the process. I uninstalled and re-installed Firefox but the problem persists. I tried doing a fresh install with all previous add-ons and whatnot ignored but it still won't run. I've tried running it with the anti-virus disabled as well as with Windows in Safe Mode but it won't work. Any ideas?
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額外的系統細節

已安裝的外掛程式

none

應用程式

  • User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36

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VeejUK 0 個解決方法 12 個答案

Hi did a clean install of Firefox 68 and AVG Free and still didn't work. It worked fine to start with but the next day when I restarted my machine it still kept hanging. I hope that helps.

I have now gone back to Friefox 67.0.4 and the problem has gone.

Hi did a clean install of Firefox 68 and AVG Free and still didn't work. It worked fine to start with but the next day when I restarted my machine it still kept hanging. I hope that helps. I have now gone back to Friefox 67.0.4 and the problem has gone.
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提出問題者

I can’t. I’m unable to get Firefox to run at all so I cannot access the information. As soon as I install anti-virus, Firefox stops working.

I can’t. I’m unable to get Firefox to run at all so I cannot access the information. As soon as I install anti-virus, Firefox stops working.
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FredMcD
  • Top 10 Contributor
4193 個解決方法 58540 個答案

VeejUK said

I have now gone back to Friefox 67.0.4 and the problem has gone.

Keep after AVG support.

''VeejUK [[#answer-1237841|said]]'' <blockquote> I have now gone back to Friefox 67.0.4 and the problem has gone. </blockquote> Keep after AVG support.
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提出問題者

Still not working for me Vaclav

Still not working for me Vaclav
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FredMcD
  • Top 10 Contributor
4193 個解決方法 58540 個答案

Did you try using v67 ?

Install Older Version Of Firefox {web link} Be sure to read everything here.

If you still want to downgrade, look under; I still want to downgrade. Click the Directory of other versions and languages link. Look for the directory of the version that you want. But, remember that old versions may have security issues.

You should also check out Firefox; Extended Support Release {web link} ESR Notes System Requirements

Did you try using v67 ? [https://support.mozilla.org/en-US/kb/install-older-version-of-firefox?cache=no Install Older Version Of Firefox] {web link} Be sure to read everything here. If you still want to downgrade, look under; '''I still want to downgrade. ''' Click the '''Directory of other versions and languages''' link. Look for the directory of the version that you want. But, remember that '''old versions may have security issues. ''' You should also check out [https://www.mozilla.org/en-US/firefox/organizations/ Firefox; Extended Support Release] {web link} [https://www.mozilla.org/en-US/firefox/organizations/notes/ ESR Notes] [https://www.mozilla.org/en-US/firefox/organizations/system-requirements/ System Requirements]
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vaclav.pich 0 個解決方法 7 個答案

Hi, may I ask you to download process explorer (https://docs.microsoft.com/en-us/sysinternals/downloads/process-explorer) and create a dump of stuck firefox.exe process ? Right click on the firefox icon in process explorer and from context menu select create dump -> create full dump. Zip all dumps into firefox_got_stuck_your_nick.zip and upload them to avast ftp for analysis (https://support.avast.com/en-eu/article/FTP-file-upload). Thank you for help !

Hi, may I ask you to download process explorer (https://docs.microsoft.com/en-us/sysinternals/downloads/process-explorer) and create a dump of stuck firefox.exe process ? Right click on the firefox icon in process explorer and from context menu select create dump -> create full dump. Zip all dumps into firefox_got_stuck_your_nick.zip and upload them to avast ftp for analysis (https://support.avast.com/en-eu/article/FTP-file-upload). Thank you for help !
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提出問題者

Thank you vaclav. I uploaded 2 files.

firefox_got_stuck_SDRobot.zip

firefox_got_stuck_SDRobot2.zip

Thank you vaclav. I uploaded 2 files. firefox_got_stuck_SDRobot.zip firefox_got_stuck_SDRobot2.zip
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FredMcD
  • Top 10 Contributor
4193 個解決方法 58540 個答案

Where?

Where?
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提出問題者

To the Avast FTP site.

To the Avast FTP site.
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vaclav.pich 0 個解決方法 7 個答案

SDRobot thank you for help. Can you try to disable avast components one by one and test if firefox is able to start properly or not. Web shield, File shield, Antirootkit, Behavioral Shield.

SDRobot thank you for help. Can you try to disable avast components one by one and test if firefox is able to start properly or not. Web shield, File shield, Antirootkit, Behavioral Shield.
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VeejUK 0 個解決方法 12 個答案

I tried this in AVG free and still didn't start, only thing that would is uninstall AVG completely. hope this helps. I have also created a post in the AVG support

https://support.avg.com/answers#!/feedtype=RECENT_REPLY&dc=All&criteria=UNANSWERED

hopefully someone can help!

I tried this in AVG free and still didn't start, only thing that would is uninstall AVG completely. hope this helps. I have also created a post in the AVG support https://support.avg.com/answers#!/feedtype=RECENT_REPLY&dc=All&criteria=UNANSWERED hopefully someone can help!

由 VeejUK 於 修改

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vaclav.pich 0 個解決方法 7 個答案

VeejUK have you tried to disable whole av ? In settings -> Core Shields there is green ON checkbox when you uncheck it all shields will be disabled (for example for 10 minutes)

VeejUK have you tried to disable whole av ? In settings -> Core Shields there is green ON checkbox when you uncheck it all shields will be disabled (for example for 10 minutes)
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提出問題者

I’ve tried disabling shields individually as well as disabling all of Avast. Firefox won’t start unless I completely uninstall Avast.

I’ve tried disabling shields individually as well as disabling all of Avast. Firefox won’t start unless I completely uninstall Avast.
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jscher2000
  • Top 10 Contributor
8583 個解決方法 70209 個答案

Firefox 68 uses a new launcher process to restrict DLL injection into the firefox.exe process. It could be that there is a compatibility problem between (some versions of) Avast/AVG and the launcher process design. However, I am not familiar with the details of how Avast/AVG interacts with Firefox at startup.

Firefox 68 uses a new launcher process to restrict DLL injection into the firefox.exe process. It could be that there is a compatibility problem between (some versions of) Avast/AVG and the launcher process design. However, I am not familiar with the details of how Avast/AVG interacts with Firefox at startup.
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vaclav.pich 0 個解決方法 7 個答案

SDRobot in dumps you provided us is one avast dll E:\Program Files (x86)\Avast\aswhook.dll. Can you please disable avast self defense in settings and rename this dll it to E:\Program Files (x86)\Avast\aswhook.dll.org and restart firefox. Thank you for help  !

SDRobot in dumps you provided us is one avast dll E:\Program Files (x86)\Avast\aswhook.dll. Can you please disable avast self defense in settings and rename this dll it to E:\Program Files (x86)\Avast\aswhook.dll.org and restart firefox. Thank you for help !
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提出問題者

I tried renaming aswhook.dll. When I try to start Firefox now, I get a blank window that fills the entire screen but Firefox does not start. I cannot close firefox.exe via task manager/end process and I cannot move or minimize the Firefox window so I cannot access my desktop.

I tried renaming aswhook.dll. When I try to start Firefox now, I get a blank window that fills the entire screen but Firefox does not start. I cannot close firefox.exe via task manager/end process and I cannot move or minimize the Firefox window so I cannot access my desktop.
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McCoy
  • Top 10 Contributor
496 個解決方法 4558 個答案

Dear people, as I see names like Avast and AVG mentioned here; for future reference :

You're best off with just using Windows built-in Defender and maybe let malwarebytes run a scan once a month.

Also see :

https://www.howtogeek.com/239950/dont-use-your-antivirus-browser-extensions-they-can-actually-make-you-less-safe/

And :

http://tech.firstpost.com/news-analysis/ex-mozilla-firefox-developer-says-anti-virus-software-does-more-harm-than-good-359798.html

Dear people, as I see names like Avast and AVG mentioned here; for future reference : You're best off with just using Windows built-in Defender and maybe let [https://www.malwarebytes.com/ malwarebytes] run a scan once a month. Also see : https://www.howtogeek.com/239950/dont-use-your-antivirus-browser-extensions-they-can-actually-make-you-less-safe/ And : http://tech.firstpost.com/news-analysis/ex-mozilla-firefox-developer-says-anti-virus-software-does-more-harm-than-good-359798.html
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VeejUK 0 個解決方法 12 個答案

Has anyone managed to solve the issue? I have reported to AVG support and they are looking into this too. Currently I've gone to using Chrome...sad times!

Has anyone managed to solve the issue? I have reported to AVG support and they are looking into this too. Currently I've gone to using Chrome...sad times!
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VeejUK 0 個解決方法 12 個答案

currently speaking with AVG support if anyone wants to follow this or respond please see:

https://support.avg.com/answers?id=9060N0000005M4Z

currently speaking with AVG support if anyone wants to follow this or respond please see: [https://support.avg.com/answers?id=9060N0000005M4Z https://support.avg.com/answers?id=9060N0000005M4Z ]
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vaclav.pich 0 個解決方法 7 個答案

Hi all thank you for patience, we contacted firefox to help us resolve the issue. Can you restart in safe mode and access about:crashes to get a crash ID ? Thank you

Hi all thank you for patience, we contacted firefox to help us resolve the issue. Can you restart in safe mode and access about:crashes to get a crash ID ? Thank you
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