I am connected to the internet and I close all tabs on the screen. Now I want to open a new tab, but Firefox opens a pop-up window stating"Firefox is already running, but not responding . To open a new window, you must first close the existing Firefox pr
I am connected to the internet, but all tabs are closed. Now I want to open a new tab, But Firefox pops-up with "Firefox is already running, but not responding. To open a new window, you must first close the existing Firefox process, or restart your system". Does anyone here know how to fix this? Thank´s, BL.
== This happened ==
A few times a week
Firefox is shutting down windows I want to remain open. Example: I am done viewing one window. I click the X to shut the window and it shuts two windows. Every single time, attempt to close one windows, two windows close. Lately, I have been opening several windows with nothing but google search, just so it will shut that window and not something else I want to remain open. I could understand this if I was using tabs, but I am not. This has been going on for over two weeks. I don't like going back to history to open a window, I did not want closed in the first place. Isn't that what 'Windows' is all about? Any ideas?
Similar Messages
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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.
This box appears and then firefox quits...never opens.
I have uninstalled, and loaded firefox 5 times and never got it to run.See [[Firefox is already running but is not responding|Firefox is already running but is not responding]].
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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]].
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I prefer using Firefox, and do all the time. However, this used to happen occasionally, then go away. Now it is happening all the time.
If I try to enter aol email, I receive the message: "Firefox is already running, but is not responding. To open a new window, you must first close the existing FF process, or restart your system.
And I can find no way to close it when that happens.
Would really like to have this solved. Do not believe it is a computer or internet problem - just had my computer repaired because of a faulty disc drive. It is a three year old Dell, with Windows XPSee "Hang at exit":
*http://kb.mozillazine.org/Firefox_hangs
*https://support.mozilla.com/kb/Firefox+hangs
* http://kb.mozillazine.org/Profile_in_use
* https://support.mozilla.com/kb/Firefox+is+already+running+but+is+not+responding -
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]].
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when i click to open firefox it says 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." and I've tried to shut down and restart my computer but it keeps showing the same message. I've even uninstalled Firefox and then reinstalled in the hopes that the problem would be solved but it this message is still popping up. What can I do to solve this problem?
== This happened ==
Just once or twice
== I was on facebook trying to upload pictures yesterday. ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0; InfoPath.1)Do you have a profile lock file in your profile folder? If so, delete it and see if TB runs properly:
http://kb.mozillazine.org/Profile_in_use#Remove_the_profile_lock_file -
If I click a link on my desktop or in any other program (while Firefox is open and running), I get 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." There's about a billion links for this if you Google it, but they all say that Firefox wasn't shut down properly. (OK, maybe not ALL of them, but if the needle is in that haystack, I haven't yet found it.) That's not the issue in my case since I haven't shut FF down at all.
== This happened ==
Every time Firefox opened
== IDKThis began to happen to me when I tried to run two separate profiles simultaneously on the same installation of firefox with -no-remote
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Update firefox, it asked me to update flash, I tried to update flash but it said I had to close firefox. A box came up and said the Flash install would continue when I closed firefox. I closed all firefox windows and no update of flash occurred. I tried relaunching firefox but got the "Doesn't start when starting as administrator. Error 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." message. I rebooted the system, no improvement. I tried to run firefox as administrator and got the same message. Either I find a fix or I won't be able to use firefox and will have to go back to ie.
-> press '''CTRL''' + '''SHIFT''' + '''ESC''' to Open Task Manager -> Processes tab -> right-click '''firefox.exe''' and click '''End Process Tree''' -> close Task Manager
Troubleshooting extensions and themes
* https://support.mozilla.com/en-US/kb/Troubleshooting%20extensions%20and%20themes
Troubleshooting plugins
* https://support.mozilla.com/en-US/kb/Troubleshooting%20plugins
Check and tell if its working. -
somehow i couldn't get rid of one website called www.searchqu.com/405 set as my homepage... I tried all solutions given to change the homepage but whenever i restarted firefox that homepage used to come automatically.. So, I deleted the profile (even from recycle bin!!) and deleted the firefox and downloaded it again hoping to get my problems fixed (which didn't happen!) because i'm getting dialog box saying- 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.
You don't say which operating system you have installed?
Assuming it's Windows, right click a blank part of the Windows Taskbar and go to Task Manager. Then click the ''Processes ''tab, find '''firefox.exe''' and then right click it and choose '''End Process'''. -
when I launch firefox get the following message "firefox is already running, but is not resonding. to open a new window, you must first close the existing firefox process, or restart your system" firefox not running and a restart doesn't solve the problem
Download a fresh Firefox copy and save the file to the desktop.
*Firefox 12.0.x: http://www.mozilla.org/en-US/firefox/all.html
Uninstall your current Firefox version, if possible.
*Do NOT remove personal data when you uninstall your current Firefox version, because all profile folders will be removed and you will also lose your personal data like bookmarks and passwords from profiles of other Firefox versions.
Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.
*It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.
*http://kb.mozillazine.org/Uninstalling_Firefox
Your bookmarks and other profile data are stored elsewhere in the Firefox Profile Folder and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.
*http://kb.mozillazine.org/Profile_folder_-_Firefox
See also:
*https://support.mozilla.org/kb/Firefox+is+already+running+but+is+not+responding
*http://kb.mozillazine.org/Profile_in_use
*http://kb.mozillazine.org/Recovering_a_missing_profile -
When I click on Firefox I get a window that says: "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your computer." I can't see where anything is running on firefox. I restarted the comuter and I shut down the computer. I also ran a full scan of the computer.
Sorry I am a PC user but have you seen
* [[Firefox is already running but is not responding]]
Firefox will be hanging for some reason. The quick solutions to kill the process and try again. The next step is to try to see if it will start and exit normally a couple of times, if so the problem is solved. If not the reason needs further investigation.
See [[firefox hangs]]
An immediate likely culprit after repeated problems are the duplicate session restore files, as discussed in the above KB article. -
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 -
I keep getting this message after closing Firefox and attempt to reopen-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.
See:
* http://kb.mozillazine.org/Recovering_a_missing_profile
* http://kb.mozillazine.org/Profile_in_use -
I get this message when I try to start Firefox after first logging on after turning on the computer.
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.
Have rebooted. Works when Administrator logs in, just does this in my user profile. Have also re-intalled. Mo change in my User account.
Firefox was working fine for the last 3 1/2 years. Any suggestions?Firefox is "hanging at exit" when you exit/quit Firefox.<br /><br />
#Stop the Firefox process:
#*[http://kb.mozillazine.org/Kill_application Mozillazine - Kill application]
#*Windows 7 users click [http://www.techrepublic.com/blog/window-on-windows/reap-the-benefits-of-windows-7s-task-manager/2576 here]
#*Mac users: http://techheavy.com/2011/02/the-mac-task-manager/
#Why Firefox may hang:
#*[http://support.mozilla.com/en-US/kb/Firefox+hangs Firefox hangs] (see Hang at exit)
#*[http://kb.mozillazine.org/Firefox_hangs Firefox hangs (Mozillazine)] (see Hang at exit and Closing Firefox properly)
#*[https://support.mozilla.com/en-US/kb/Firefox+is+already+running+but+is+not+responding Firefox is already running but is not responding]
#Use Firefox Safe Mode to find a problem with an Extension or Plugin:
#*Don't check anything when entering Safe Mode, just continue
#*If the problem does not occur in Safe Mode it is probably and Extension or Plugin causing the problem
#*See:
#**[[Safe Mode]] and [http://kb.mozillazine.org/Safe_Mode Safe Mode (Mozillazine)]
#**[http://support.mozilla.com/en-US/kb/Troubleshooting+extensions+and+themes Troubleshooting extensions and themes]
#**[http://support.mozilla.com/en-US/kb/Troubleshooting+plugins Troubleshooting plugins]
#**[http://support.mozilla.com/en-US/kb/Basic+Troubleshooting Basic Troubleshooting]
'''If this reply solves your problem, please click "Solved It" next to this reply when <u>signed-in</u> to the forum.''' -
After deleted profile my Firefox will not start
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 tried – Restarting - Checking control panel for active firefox.exe –Uninstal l- Reinstall- and run CCleaner. All without any result
Can You help me? Are there any other processes that can be running?
Is there any cleaning tool available?
Best Regards, PelleHi Pelle,
Why did you delete your profile? Also how? Did you use the profile manager or did you delete from the windows file structure?
It sounds like something during the profile delete has stopped Firefox from starting up. Please see the this article and follow the steps:
Please see this article: [http://kb.mozillazine.org/Profile_in_use]
--Edward
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