After logging off I get the message Firefox is still running please disconnect or turn off your computer

When I logg off firefox I cannot logg on until waiting for a couple of minutes.
this is the message I receive....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 noticed this problem with other computers being used by other people. Also I cannot open several windows at a time, I always loose rhe original window or web site.

If you try to immediately open Firefox after closing it, you may get this message. I does take a few seconds to completely close.
Sounds like it is hanging when you exit and later try to restart Firefox.
* How to stop the running Firefox process
** In Task Manager, does firefox.exe show in the '''Processes''' tab?
** See: http://kb.mozillazine.org/Kill_application
**Windows 7 users: http://www.techrepublic.com/blog/window-on-windows/reap-the-benefits-of-windows-7s-task-manager/2576
* What may cause Firefox to hang at exit
** http://support.mozilla.com/en-US/kb/Firefox+hangs
** http://kb.mozillazine.org/Firefox_hangs
** https://support.mozilla.com/en-US/kb/Firefox+is+already+running+but+is+not+responding
* You may need to try Firefox Safe Mode
** You may need to use '''Safe Mode''' to locate the problem:
***See:
****https://support.mozilla.com/en-US/kb/Safe%20Mode
****http://kb.mozillazine.org/Safe_Mode
***Firefox 4 & 5 users, hold the Shift key while clicking the Firefox 4 desktop icon to enter Safe Mode or, when Firefox 4 or 5 is open you can use the menu item Help > Restart with Add-ons Disabled (Firefox immediately shuts down and then restarts)
***Firefox Safe Mode is a diagnostic mode that disables Extensions and some other features of Firefox.
****In Firefox 4 & 5, Safe Mode also disables Plugins and Hardware Acceleration.
****If you are using a theme, switch to the DEFAULT theme: Tools > Add-ons > Themes '''before''' starting Safe Mode (In Firefox 4, Tools > Add-ons > Appearance). See: http://support.mozilla.com/en-US/kb/Using%20themes%20with%20Firefox#w_managing-themes-and-personas
****When entering Safe Mode, do not check any items on the entry window, just click "Continue in Safe Mode".
****Test to see if the problem you are experiencing is corrected.
*** If the problem does not occur in Safe-mode then disable all of your Extensions and Plug-ins and then try to find which is causing it
***#by enabling '''one at a time''' until the problem reappears.
***#You can also enable a few at a time (3-5) or half of them, if you wish, keeping track of what you just disabled/re-enabled to see if the problem re-occurs; this will help narrow down the possibilities if you have a large number of add-ons.
***#'''You MUST close and restart Firefox after EACH change''' via File > Restart Firefox (on Mac: Firefox > Quit).
***#You can use "Disable all add-ons" on the Safe Mode start window.
**See the following for more information
*** http://support.mozilla.com/en-US/kb/Troubleshooting+extensions+and+themes
*** http://support.mozilla.com/en-US/kb/Troubleshooting+plugins
*** http://support.mozilla.com/en-US/kb/Basic+Troubleshooting

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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 I close the browser, firefox won't open again. I get the message "Firefox is still running, restart your computer." How do I fix this?

When I close the Firefox browser by clicking on the X in the upper right-hand corner of the screen, the window closes. But when I want to open Firefox again, I cannot. Instead, I get a message, "Firefox is still running. Restart your computer." This happens a few times a week and is very disconcerting. How do I fix this problem?

I will only close the browser by using your suggestion, File > Exit, from today on, and see what happens. Thank you for your expedient reply.

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]].

I always 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." on terying to run firefox

When I try to run 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."
No copy of firefox is running as far as I can tell. Restart and restoring system to 10 days ago did not help.
Uninstalling and downloading a new copy - but to not avail.

See:
* http://kb.mozillazine.org/Recovering_a_missing_profile
* http://kb.mozillazine.org/Profile_in_use
Do you still have a default profile? 
If not then delete the file [http://kb.mozillazine.org/profiles.ini_file profiles.ini] to make Firefox create a new default profile.
* C:\Documents and Settings\<user>\Application Data\Mozilla\Firefox\Profiles\<profile>\

I get the message "Firefox is already running but not responding" and I have tried all of your solutions and nothing has worked so what do I need to do?

My daughter downloaded Babylon (incredibar) malware and we tried to reset Firefox. It got hung up and I closed the window. When I tried to restart Firefox, I got the messsage "Firefox is already running...". I uninstalled and reinstalled Firefox as well as restarting the computer a number of times. I followed the Mozilla help info and deleted the profile locked. parent(?). I use Windows 7 Ultimate.

hello sdandccids, unfortunately this babylon software is hooking-in deeply into the system. especially the component browsemngr.exe (+dll) is known to crash firefox and possibly might also cause the issue you're experiencing.
please go into the windows control panel > programs section and sort the software according to installation date & then remove all entries that got installed at the same date as the babylon toolbar and you're not familiar with ([https://support.mozilla.org/questions/935739#answer-367152 according to babylon] this might be "Browser Manager" + "Bprotector" + "Object Installer" + "Babylon Toolbar on IE").
in case this doesn't work or there are no such entries showing up, please hit ctrl+shift+esc and search if there is a file named browsemngr.exe showing up as running in the list of processes - if so here are instructions for a manual removal (unfortunately quite technical): www.explosiveknowledge.net/main/2012/08/19/browsemngr/
otherwise you can also try a "clean uninstall". uninstall firefox from the windows control panel & chose to remove all personal data. afterwards manually check if the firefox program folder got deleted (it's usually in ''C:\Program Files\Mozilla Firefox'') and else remove it manually. then download & install a fresh copy at getfirefox.com
i'd furthermore recommend doing a full scan of your system with the security software already in place and/or a different tool like the [http://www.malwarebytes.org/products/malwarebytes_free free version of malwarebytes] since this firefox start-error can also be a sign of other [[Troubleshoot Firefox issues caused by malware|malware]] active on the pc.

I have an issue that I cannot open Firefox, and I get the message "Firefox is already running..." and it says I need to close it or restart my computer.

There is a page on the support site that attempts to adress the issue...but it never says how to fix it. https://support.mozilla.com/en-US/kb/Firefox+is+already+running+but+is+not+responding
Apparently there is a problem with the "profile", and on this support page, it has a link about working with the profile...if you go to that page, is tells you where the profile is, and the many things it does...but it does NOT say actually how to fix this problem. It tells you to go the the Help tab at the top of the browser, then select "Troubleshooting", and then under Profile, select "Open Containing folder"...which brings up the folder with all the files...but from there...it doesn't say what to do. I also have gone to the Start tab at the bottom of Windows (Windows XP--I've got Firefox 3.6.9) then Run and opened the profile box...but there are no instructions on what to do to fix the problem. I can open Firefox only by going to Crtl-Alt Delete and opening the process tab and ending the Firefox process...but this is not a fix. Help! thanks...

You need "sysinternal's process explorer", it is free and can replace the Microsoft process explorer, that you get by "CTRL+ALT+DELETE". Either program will allow you to kill the instances of FF that didn't die as they should have, when you closed them. Sysinternal is easier to use, it is a graphic display with many options. Do not push "CTRL+ALT+DELETE" twice unless you want to reboot, that is its default behaviour under Microsoft.

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]]

Why does firefox stop loading then when i close it and try to open it up again I keep getting this 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

Firefox will just stop loading/ connecting to the internet. The gray circle will just continually move but it never turns green to load the pages. I know it's not my internet because my internet explorer works just fine while this is happening to firefox. So I close firefox and then try to re open it but 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. So I wait a little bit then try and re open it and still get the same message. I then go into my windows task manager and try and end the firefox proccess but it won't end. So I restart my computer and firefox eventually starts acting up again.

For possible causes of this error, and how to troubleshoot it see [[Firefox is already running but is not responding]].

When I click onto the firefox webbrowser, I get the message "firefox has stopped working, windows will close the application to find a solution to the problem " This has been going on for several days, I've had to go back IE to access web pages

When I click onto the firefox webbrowser, I get the message "firefox has stopped working, windows will close the application to find a solution to the problem."

I had this exact same problem. I found this fix and it worked for me.
Step 1:
Browse to C:\Program Files (x86)\Common Files\Apple\Apple Application Support and copy the filen named QTMovieWin.dll.
Step 2:
Browse and past that file into C:\Program Files (x86)\iTunes.
Hope this helps you. I wish I could remember where I saw this originally so I could thank them.
Good Luck.
Anthony

Keep getting this 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." , but cannot view Firefox open window or close it. Have to always reboot system.

Keep getting this 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." However, cannot view open window or close Firefox. Have to always reboot system to access the internet.

For possible causes of this error, and how to troubleshoot it see [[Firefox is already running but is not responding]].

I have just created an apple ID to use face time, however when I try to log in I get the message 'email already verified' and can't move on.

I have just created an apple id to use face time. However whenI try to log in I get the message 'email already verified' and then can't move on.
Can anyone help please.

You must create the account using an Apple device, a Mac (Lion or greater) or an IOS device (IOS5 or greater). Having done that you will be able to sign in from your Windows machine.
FYI, iCal is an application that can display calendars from iCloud (and others) it is not a calendar itself, merely a calendar client. In Windows Outlook is the calendar client.

After downloading Itunes I get the message this Ipod cannot be used because the required software is not installed.Run the itunes installer to remove Itunes then install Itunes again

After downloading Itunes I get the message this Ipod cannot be used because the required software is not installed.Run the itunes installer to remove Itunes then install Itunes again

Did you do what the message said?
Also try using the Win 7/Vista link in the following:
Removing and Reinstalling iTunes, QuickTime, and other software components for Windows XP

I keep getting this message, I decided to delete whatever I can to free up some space. Then I get my few GBs I have left on the startup disk. Then after a day, I get the message again. I check the startup disk size and notice I have "zero kb" left. ??????

I keep getting this message, I decided to delete whatever I can to free up some space. Then I get my few GBs I have left on the startup disk. Then after a day, I get the message again. I check the startup disk size and notice I have "zero kb" left. ??????

Click your Apple menu icon top left in your screen. From the drop down menu click About This Mac > More Info > Storage
Make sure there's at least 15% free disk space.
Restart your Mac after freeing up disk space then check Stoage again.
Another way to view avialable space:
Control click the MacintoshHD icon on your Desktop then click Get Info.
In the Get Info panel you'll see: Available & Capacity
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When I start mozilla firefox web browser, sometimes I see a message saying that "a Mozilla Firefox is already running, please close it or restart your program", while I don't have one running at that time. What is the problem?

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Plug-in and tasks started by Firefox may continue after attempting to close Firefox. The "X" in the upper right-hand corner closes the Window (same as Ctrl+Shift+W) but even if it is the last Firefox window, it does not necessarily close Firefox .
'''The only proper way to exit Firefox is to use Exit through the File menu''', not the "X" in the upper right corner of last Firefox window.
''Menus hidden: then use Alt+F then X.''
'''Firefox hangs''' | Troubleshooting | Firefox Support ''(some extensions cause a problem)''
* http://support.mozilla.com/kb/Firefox%20hangs#w_hang-at-exit
Use the '''Windows Task Manger''' to remove all running firefox.exe in the "Processes"
tab of the Windows Task Manager, then restart Firefox.
"'''Restartless Restart'''" extension for Firefox 4.0 only (2 KB download )
* https://addons.mozilla.org/firefox/addon/249342/
use to close and restart Firefox after enabling or disabling an extension, switching
to a new theme, or modifying configuration files, then you don't have to worry
about delay or have to look in the Task Manager to see if Firefox is closed yet.
Uses keyboard shortcut "'''Ctrl+Alt+R'''" or a file menu option.
'''Windows 7''' users can use '''Ctrl+Shift+Esc''' to get to the Windows Task Manager quicker than starting with Ctrl+Alt+Del.

After logging off I get the message Firefox is still running please disconnect or turn off your computer

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