Long after logging off, when I try to log on again I am told firefox is still running but not responding.

That just about says it,

https://support.mozilla.com/en-US/kb/Firefox%20hangs <br />See '''hang-at-exit'''

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I frequently find that when closing Firefox, and try to reopen again, get error message "Firefox is already running, but not responding. Recommend to close it, or restart system". Using Windows Task Manager, no application is found. After restart, OK.

At the update to Firefox 3.6.8, I also updated to Flash 10.

I get this problem often, on my computer which runs XP, I find simply waiting a few moments (up to a minute) is enough to end the process.
On my Vista machine, it sometimes works that way, but if FF locked up (stopped) and is ended through the task manager, it often requires a reboot or a much longer wait (up to 10 minutes or more).

After I close Firefox, if I try to re-open weithin about 1/2 hour, I get a message " Firefox is still running but not responding". How do I fix this?

The question is all there is!!

See "Hang at exit":
* http://kb.mozillazine.org/Firefox_hangs
* [[Firefox hangs]]

Iget this when I try to open a session....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.task mngr shows no open firefox processes.

I get this when I try to open a session....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.The task manager shows no open Firefox processes.I had two users on this laptop running Firefox and I tried deleting the program on both users. I then downloaded the newest version, installed it and I still get the error message as before. HELP!!!! I loved the browser program when it was working before and would rather use it than other browsers.

See "Hang at exit":
* http://kb.mozillazine.org/Firefox_hangs
* https://support.mozilla.com/kb/Firefox+hangs

On switching on, a message says 'Firefox is already running but not responding...........' then tells me to close it and restart but how can I close it when the page isn't yet displayed?

When I switch on my computer I get the desktop then I try to click on Mozilla Firefox but get the message, 'Firefox is already running but not responding. To open a new window you must first close the existing Firefox process or resart your system.' I looked up how to close but I need to click on 'file' then 'exit'. How can I do that when I can't see the page yet? IE is working fine.

See also [[Firefox is already running but is not responding]]

I am having trouble with Firefox not closing properly. I close a session and when I try to open firefox again it tells me firefox is already running and not responding.

When I close Firefox and try to open the browser next time it tells me Firefox is already running and not responding.

See "Hang at exit":
*http://kb.mozillazine.org/Firefox_hangs
See "Firefox hangs when you quit it":
*https://support.mozilla.com/kb/Firefox+hangs

When I use a GSI external antenna for WiFi I first get a message that "Firefox is already running but not responding etc", and then Firefox crashes. Can anyone help please?

Because of weak WiFi signal I need to use an external antenna (GSI USB wireless WIFI long range network adapter). My computer can see the signal clearly and shows that I am connected to the right network. But when I try to launch Firefox I get a message that "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." When I click "OK" Firefox tries to load websites but gives up and reports "Problem Loading". It looks like Firefox is having trouble "seeing" the signal from the external antenna. What do I need to do please?

Try Ubuntu support, I don't think your problem is with Firefox - it will use the connection that the Operating System "makes". I'm a real noob with Ubuntu myself, and don't think I can help you figure out the problem.
http://ubuntuforums.org/

Every time I try to load firefox, WindowsXP says firefox is already running but not responding and before it can load another I have to shut down the one running and reboot my computer.

My problems started when I downloaded Ilivid downloader, after I loaded the program and watched the short video the program started messing up my computer. It spread itself all over my hard drive, changed my homepage, my search engine, locked me out of being able to change certain settings, made some of its files undeleteable and since then my firefox will not load. I removed my version of firefox and reinstalled it several times. I still got the same response. I went into the registry and deleted all references to Mozilla and Firefox and reinstalled it again, same response. I spent days trying to delete all references to ilivid downloader and every file I could find that made any reference to ilivid. I hope you can help me with my problem. I like using firefox and would like to start using it again. Thanks

See
* [[Firefox is already running but is not responding]]
Try closing any running instances of ''firefox.exe'' (and plugincontainer.exe) using something such as Task Manager. That should allow you to then restart Firefox.
As for iLivid. Possibly it also has associated apps or extensions with names not including the word iLivid. Looking at their own FAQs there are instructions to remove iLivid using the Windows Control panel, and mention of other bundled software that you may wish to remove. It seems it is more of a nuisacne rahter than out and out malware.
* see http://www.ilivid.com/faq.htm (page scrolls for more info) but includes:
How do I uninstall the software?
The software can be removed in a simple was like any other software:
Go to the Windows Start menu and then to Control Panel > Add/Remove ("Programs & Features" in Vista & Windows 7) and click "Remove" next to the software name (e.g iLivid Download manager / Windows iLivid Toolbar ).
During the installation bundle software are offered, each can easily be removed following those instructions: Uninstall Yontoo Addon , Uninstall Search Toolbar (powered by Bing) or Uninstall Babylon.

When I open Firefox I get the message "Firefox is already running but not responding . . .

I am using Firefox 3.6.9 with Windows XP SP3. Almost every time I try to open Firefox I get the message:
"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."
I then must open Task Manager and find Firefox and stop the process.
I run Firefox on 4 Windows machines and this is the only machine that I have this problem on.
I have looked at the Mozilla Firefox KB and have tried to check on the items that could be causing the problem. I have update my Java in Firefox. I have un-installed Firefox leaving the Bookmark preferences, etc. on my machine, ran CCleaner to clean the Registry of remaining Firefox items and then re-installed Firefox - I still have the problem.
I have installed Google Chrome to fix this problem but now I find that several of the websites and companies I do business with are not compatible with Chrome.
How can I fix this problem? Why am I only having this issue on 1 of my 4 Windows machines?
Thanks!
Bill Artman

For possible causes see [[Firefox is already running but is not responding]].

Even after uninstalling, reinstalling Firefox, the Firefox profile folder is empty, and I get the message "Firefox is still running and not responding close firefox...

Even after uninstalling, reinstalling Firefox, the Firefox profile folder is empty, and I get the message "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." I have followed all the directions I can find, on my computer and Firefox Support. Still, the same message comes up, and "firefox" is not shown in my Windows Task Manager.
What can I do?

Delete the profiles.ini file and let Firefox create a new default profile.
* http://kb.mozillazine.org/profiles.ini_file
* http://kb.mozillazine.org/Profile_folder_-_Firefox#Files_and_folders_outside_the_profile_folder

When closing FF and then try to go back on, a msg. says FF is already running, but not responding, to open new window you must first close the existing window or restart system. How do i close without restarting?

'This happens after a FF session is ended and am back on my desktop screen. If I then try to go back online a message says that FF is already running but is not responding. To open a new session you must first close the existing process or restart your system. I have to restart the computer to before it allows me to go back on. How can I close the session and then open a new one without rebooting???

Hey GreenViking,
You can kill the process manually by right clicking in the task bar (next to the time and date) and opening the task manager.
[https://support.mozilla.com/en-US/kb/Firefox%20hangs#w_firefox-hangs-when-you-quit-it This article] has some information about Firefox hanging when you try to close it.
Hope that helps!

When I try to close all programs it tells me firefox is still running and I have to close it first but it is not running!

After I have finished working on my computer, I close it all out and shut the monitor off. Lately it will not let me close out saying that firefox is still open and I should close it first. I cannot see anything that indicates firefox is running.

It sounds like it is hanging at exit, for details on how to troubleshoot that see either of these links:
* https://support.mozilla.com/kb/Firefox%20hangs#w_hang-at-exit
* http://kb.mozillazine.org/Firefox_hangs#Hang_at_exit

I try to open firefox(i get this message)firefox is already running,but not responding.you must close the existing firefox process,or restart system.I try reboot (no help)I can not find any existing process to close!

When I log on to my wife account (same computer) her firefox opens and preforms just fine. I even unistalled firefox and reinstalled and it does the same thing..

Hey GreenViking,
You can kill the process manually by right clicking in the task bar (next to the time and date) and opening the task manager.
[https://support.mozilla.com/en-US/kb/Firefox%20hangs#w_firefox-hangs-when-you-quit-it This article] has some information about Firefox hanging when you try to close it.
Hope that helps!

When not on Firefox and go to do it, why am I constantly getting: "Firefox is already running but not responding. To open a new window you must close the existing Firefox process, or restart your computer." Moreover, HOW CAN I STOP IT FROM HAPPENNING???

Every time I have to re-start my computer I need to stop my work. It would sure be nice if you can tell me how to keep this from occurring.
Thank you.

Sounds like Firefox isn't closing down completely when you exit it. <br />
https://support.mozilla.com/en-US/kb/Firefox%20hangs <br />See '''hang-at-exit'''

It always says:Firefox is already running but not responding; what can i do to fix this problem; it has only started after having downloaded the latest verion.

I downloaded the latest version of firefox and the problem has started; it aways says: "Firefox is already running, but not responding. To open a new window you must first close the existing Firefox process or restart your system; I have to do this about 3 times for the internet to come on again; what can I do, short of calling a technician??

Please read this article: [[Firefox is already running but is not responding]]

Long after logging off, when I try to log on again I am told firefox is still running but not responding.

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