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Cannot close Firefox completely since upgrade to version 18

Posted

Since I updated Firefox (actually it updated itself automatically) to version 18, it never closes cleanly anymore. Whether I close it using the cross on the top right, or using the menu option File > Exit, it disappears, but remains in memory.

So next time I try to start Firefox I get the message that Firefox is still running but it is not, just the process is still in memory. Only way to solve this is to use the Task Manager and kill the firefox.exe process. Then I can start Firefox again.

This problem is reproducible on all versions since 18, including the current 19.0.2. It happens every time !

But if I install version 17.0.2, then I have no problems at all ! So it is something introduced in release 18 that broke it.

I of course tried all "suggestions" about testing extensions (same problem in safe mode, so not the problem), disabling hardware acceleration, ...

Can someone please help ? (I am more and more considering switching to Chrome as this is really annoying ...)

Since I updated Firefox (actually it updated itself automatically) to version 18, it never closes cleanly anymore. Whether I close it using the cross on the top right, or using the menu option File > Exit, it disappears, but remains in memory. So next time I try to start Firefox I get the message that Firefox is still running but it is not, just the process is still in memory. Only way to solve this is to use the Task Manager and kill the firefox.exe process. Then I can start Firefox again. This problem is reproducible on all versions since 18, including the current 19.0.2. It happens every time ! But if I install version 17.0.2, then I have no problems at all ! So it is something introduced in release 18 that broke it. I of course tried all "suggestions" about testing extensions (same problem in safe mode, so not the problem), disabling hardware acceleration, ... Can someone please help ? (I am more and more considering switching to Chrome as this is really annoying ...)

Additional System Details

Installed Plug-ins

  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Shockwave Flash 11.4 r402
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.3
  • 4.1.10111.0
  • The plug-in allows you to open and edit files using Microsoft Office applications
  • Office Authorization plug-in for NPAPI browsers

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:19.0) Gecko/20100101 Firefox/19.0

More Information

I have Firefox 19.0.2.
Windows 7.
This is not about the machine I am on now, which is my work machine.

iamjayakumars 489 solutions 5951 answers
Go through this link *kb.mozillazine.org/Firefox.exe_always_open
cor-el
  • Top 10 Contributor
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17472 solutions 157918 answers

Did you try to disable all plugins?

See also:

Did you try to disable all plugins? *https://support.mozilla.org/kb/Troubleshooting+plugins See also: *"Hang at exit": http://kb.mozillazine.org/Firefox_hangs *"Firefox hangs when you quit it": https://support.mozilla.org/kb/Firefox+hangs

Question owner

Hello Cor-el,

Yes as mentioned in my problem description, I tested all "classical solutions" proposed on this and other forums, including starting in safe mode to disable all plugins, and reading the 2 articles you mention above.

Thanks anyway for your input!

I will however give a try at this other article referred by iamjayakumars as I didnt know this one.

Stephane

Hello Cor-el, Yes as mentioned in my problem description, I tested all "classical solutions" proposed on this and other forums, including starting in safe mode to disable all plugins, and reading the 2 articles you mention above. Thanks anyway for your input! I will however give a try at this other article referred by iamjayakumars as I didnt know this one. Stephane
cor-el
  • Top 10 Contributor
  • Moderator
17472 solutions 157918 answers

Note that plugins are not affected by running Firefox in Safe mode, so if you do not disable them manually then they are still all enabled even if you run Firefox in Safe mode.

In Firefox Safe mode these changes are effective:

  • all extensions are disabled
  • the default theme is used (no persona)
  • userChrome.css and userContent.css are ignored
  • the default toolbar layout is used (localstore-safe.rdf)
  • the Javascript JIT compiler is disabled
  • hardware acceleration is disabled
  • plugins are not affected
  • preferences are not affected
Note that plugins are not affected by running Firefox in Safe mode, so if you do not disable them manually then they are still all enabled even if you run Firefox in Safe mode. In Firefox Safe mode these changes are effective: *all extensions are disabled *the default theme is used (no persona) *userChrome.css and userContent.css are ignored *the default toolbar layout is used (localstore-safe.rdf) *the Javascript JIT compiler is disabled *hardware acceleration is disabled *plugins are not affected *preferences are not affected