Question about Mozilla Firefox

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My firefox is not responding?

My firefox dsning't opening i try one click and nothing, reterminate nothing..including reintalling.

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  • Edgardo Burgos Rodriguez

    You may be right?....

  • CrunkMelissa May 11, 2009

    for the past week, it has not responeded, and will never come up.


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  • 431 Answers

Try formatting the computer system and reinstall firefox. I guess your system is infected with some virus which doesnt allow programs to run.

Posted on Jan 13, 2009

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1 Answer

My mozilla firefox won't open, won't uninstall and when i click to open nothing happen and later i'm going to shutdown my computer displaying an information informing me that my mozilla firefox is open....

just hit CTRL+ALT+DEL and open the task manager and got to the Processes and find firefox there and just hit end process. and then try to uninstall it. if you still face the same problem then just install the google chrome it is better and forgot firefox.

Apr 19, 2011 | Mozilla Firefox

1 Answer

Mozilla works for a few seconds than is not responding

Try to run firefox in safe mode.
At the top of the Firefox window, click the Firefox button, go over to the Help menu and select Restart with Add-ons Disabled.... Firefox will start up with the Firefox Safe Mode dialog. For Windows XP, click the Help menu and select Restart with Add-ons Disabled.... Note: You can also start Firefox in Safe Mode by holding down the shift key while starting Firefox.
if it runs better, remove add-ons one by one to find which one is causing the problem.

Apr 11, 2011 | Mozilla Firefox

2 Answers

Mozilla firefox is not responding

Go to 'Run' and open 'cmd'
· Type 'netsh' in command console then press enter
· Then type 'winsock' and press enter and then type reset
· Restart Your PC
Another way is
· Open Regedit
· Navigate to:
· Find the Key :
· Name: EnableDCO and set
· Data: N
· Restart Your PC
· Problem Is Solve

It is a registry error. Run a registry cleaner to fix the error. Firefox creates registry key it may be error in registry key. May be dll is missing so you can run registry cleaner reg in out to solve it.

Sep 20, 2010 | Mozilla Firefox

2 Answers

Firefox is already running, but is not responding. To open a new window, you must...

See if closing out the current window of firefox and try opening it again. If it is still not working, try restarting your computer to fix the issue. If that still does not work then try uninstalling firefox and reinstalling it.

Apr 01, 2010 | Mozilla Firefox

2 Answers

Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.

remove firefox under ad and remove programs also under programs delete any residual files from firefox including cookies and internet history etc. restart you pc and reinstall Firefox.

Dec 13, 2009 | Mozilla Firefox

1 Answer

When I try to restart Mozzila Firefox 3.5.5 after being on & closing it I get message saying Firefox is running but not responding. Please help correct this problem.

CAD (Ctrl+Alt+Delete).to open Windows Task Manager Click Proceses, Choose Firefox.exe, Click End Process, Click Yes, Restart Firefox.
Or you can restart the machine, but it takes longer.

Oct 21, 2009 | Mozilla Firefox

2 Answers

Mozilla firefox not working anymore

Try reinstalling the mozilla.

Jul 08, 2009 | Mozilla Firefox

3 Answers

Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.but I have no Firefox window open what should i do?

HIt cntrl alt delete to open task manager (or right click on the taskbar) and look at the processes running. You will find Firefox is running although you dont currently have the browser window open. Click on Firefox in the task manager and close it out. Then close the task manager and you'll be able to open Firefox again. This is a common problem with Firefox. It happens in IE as well but for some reason, you can still open IE.
Hope this settles your problem. All the best!

Jun 10, 2009 | Mozilla Firefox

2 Answers

Non response

Have you tried uninstalling firefox via the 'add remove programs' option in your control panel?
do this then download and install firefox again.

Apr 11, 2009 | Mozilla Firefox

1 Answer


Open Firefox--Tools Tab--scroll down to Options---open Advanced---press CHECK NOW button to see if Firefox is your default browser. Set to default browser if it's not.

Open Firefox--Tools Tab--scroll down to Options---open/click PRIVACY--"accept third party cookies" should be checked.

Mar 30, 2009 | Mozilla Firefox

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