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windows 8.1 doesnt close firefox properly

  • 3 replies
  • 1 has this problem
  • 1 view
  • Last reply by FredMcD

Alan M
Alan M
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I have a niggling problem with Firefox -

I am running the latest version of Firefox ( 35.0.1 ) and the latest version of Windows 8.1 - there are no updates available from Windows Update.

Regularly when I close Firefox by clicking the X in the top right corner, the Program seems to close, but wh en Igo to open it again by clicking on the Icon that I have pinned to my Taskbar I get a window with the error message :

"Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window."

I then close that Window and Fierfox restarts.

Thanks.

I have a niggling problem with Firefox - I am running the latest version of Firefox ( 35.0.1 ) and the latest version of Windows 8.1 - there are no updates available from Windows Update. Regularly when I close Firefox by clicking the X in the top right corner, the Program seems to close, but wh en Igo to open it again by clicking on the Icon that I have pinned to my Taskbar I get a window with the error message : "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window." I then close that Window and Fierfox restarts. Thanks.

All Replies (3)

ideato
ideato
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Hello coconut11, can you replicate the issue when you click the 3-bar menu and then click exit ?

thank you

Chandan_Baba
Chandan_Baba
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Since everything is in firefox profile which needs to be unlocked at time of opening of firefox. Do following steps which helps to you to solve this problem:

  • Open Task Manager by right click on empty side of taskbar(located in bottom generally of windows) or press CTRL+SHIFT+ESC .
  • Now click on Process tab and search for firefox.exe .
  • Right click on that and choose End Process with Yes when asked by Task manager.
  • delete all firefox.exe file from process if any other are existed there.
  • now run firefox normally.

Again, if the above not works then try to Remove profile lock :

now run firefox.

FredMcD
FredMcD
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Do you have the Firefox icon on your quick launch? Right click on it, and select Open New Window. Sometimes this works. If it opens, close it by Menu > File > Exit.

This is not a cure but will make it easier if Firefox locks up in Windows. https://support.mozilla.org/questions/997866 {web link}

Start Firefox in Safe Mode {web link} While you are in safe mode;

Type about:preferences#advanced<Enter> in the address bar.

Under Advanced, Select General. Look for and turn off Use Hardware Acceleration.

Poke around safe web sites. Are there any problems?