I tried a fresh install and get "Firefox is already running" error

Win XP SP3. Links in web pages opened in Firefox were not working. I tried reinstalling latest Firefox version over existing version. Didn't help. Uninstalled Firefox, reinstalled; didn't help. Did a total uninstall including manually removing all Firefox files and folders. Rebooted in-between. Now I keep getting the error message "Firefox is already running ..." Tried the steps in the article in your database but no longer have a profile. Bottom line: can no longer install a working version of Firefox.

You probably did delete the Firefox profile folder, but didn't remove the profiles.ini file, so Firefox isn't able to find the old profile and displays misleading and confusing error message.
* http://kb.mozillazine.org/profiles.ini_file
* https://support.mozilla.org/kb/Firefox+is+already+running+but+is+not+responding
You can delete profiles.ini to make Firefox create a new default profile or use the profile manager to create a new profile.
See "Basic Troubleshooting: Make a new profile":
*https://support.mozilla.org/kb/Basic+Troubleshooting#w_8-make-a-new-profile

Similar Messages

  • I deleted my foxfire profile contents and now get firefox is already running error. reinstall did not help

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    You can get that error if Firefox can not find the profile folder. For details on what to check see http://kb.mozillazine.org/Profile_in_use

  • "Firefox is already running" error while opening a Firefox Document

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    I don't have much difficulty with this problem. It's more of an annoyance.
    A ''frequent'' annoyance.
    What I'll do is log in to a page that requires a secure connection, and when I'm finished, to complete the security, I always close the browser. Then, of course, I start the browser up again.
    The problem is, ''Firefox is still shutting down'', and issues this error. Most of the time, I can wait 10 seconds, then start up fine.
    '''So my question is,''' why the heck can't the process that detects that Firefox is still running do the waiting for me? Instead of popping up a message, "Firefox is still running", pop up a message, ''"Firefox is cleaning up from the last shut-down, one moment please"'', then start up again.
    I hate to mention it, but none of Firefox's competitors have any problem with starting up too soon after a shut-down.

  • After trying every suggestion and uninstalling & installing with clean copy. I still get firefox is already running, but is not responding. To open a new window

    I have tried to restore to an earlier period. uninstalled then reinstalled mozilla, and restarted numerous times, but whenever I try to open the message Firefox is already running, but is not responding. To open a new window, you much first close the existing Firefox process, or restart your system.
    Can use some advanced insight on this.

    Try to use "Firefox > Exit" (Windows: Firefox/File > Exit; Mac: Firefox > Quit Firefox; Linux: Firefox/File > Quit) to close Firefox if you are currently doing that by clicking the close X on the Firefox title bar.
    See:
    *http://kb.mozillazine.org/Profile_in_use
    *https://support.mozilla.org/kb/Firefox+is+already+running+but+is+not+responding

  • How can I stop from getting the "Firefox is already running" error message when trying to open links and FF has already been opened through a symbolic link?

    I use symbolic links and program shortcuts as a way to easily open different Firefox profiles ie. one for casual/personal use and another for work. This works well, but I get the "Firefox is already running, but is not responding" error message if I try to open external links with FF as my default browser. FF is actually open and running fine, but I guess it doesn't acknowledge this fact because of how I'm originally starting the process.
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    http://superuser.com/questions/255312/pin-same-app-multiple-times-in-windows-7

    hello, this is probably happening when you run the default profile with the -no-remote switch.
    http://kb.mozillazine.org/Profile_in_use

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    Every time Firefox opened
    == IDK

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  • Firefox 29.0.1 on Windows 7 (64-bit): ALWAYS get "Firefox is already running but not responding..." error and need Task Manager to close/restart Firefox.

    I run Firefox 29.0.1 on Windows 7 (64 bit) and I get the "Firefox is already running but not responding. In order to open the program you must close the existing window." error. EVERY TIME I try to start Firefox. The posted solution works to start the program, but it is not a permanent solution. I go through the Task Manager and end the old Firefox process, then I can open a new window. While working, I can open multiple tabs and multiple windows, everything seems to (usually) work the way it should. Then after I completely exit Firefox, in order to open the program again I need to fix the SAME error again. Every time. It doesn't seem to hurt anything really, but it is quite annoying.
    I used to get this same error on some of the older Firefox versions but it was only once in a while. With the new 29.0.1 it is literally EVERY TIME I TRY TO RUN FIREFOX!!!!
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    '''https://support.mozilla.org/questions/997866?esab=a&s=&r=1&as=s'''.<BR>
    This is not a cure but will make it easier if Firefox locks up.

  • I get "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 when trying to open Firefox.

    I have found this particular problem addressed in the assistance pages, and have tried all of the suggestions (trying to delete parent.lock from the profile, restoring the profile, etc.). Nothing works. What's next?

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

  • When I try to start Firefox I get 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 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.'''

  • I close firefox and try to open it again later, it WON'T and 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 system." Firefox isn't running .

    After I turn on my laptop and click on firefox it works fine and it opens THE FIRST TIME. So can you help? i DON'T WANT TO RESTaRT my computer everytime and sometimes have to clsoe firefox b/c I'm typing paper and computer goes slow.

    Sounds like a "hang at exit" problem. There are several possible causes for that error. See:
    * How to stop the running Firefox process
    ** In Task Manager, does firefox.exe show in the '''<u>Processes</u>''' tab?
    ** See: http://kb.mozillazine.org/Kill_application
    * What may cause Firefox to hang at exit
    ** http://support.mozilla.com/en-US/kb/Firefox+hangs (see "Hang at exit" section)
    ** 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: http://support.mozilla.com/en-US/kb/Safe+Mode
    **Firefox Safe Mode is a diagnostic mode that disables Extensions and some other features of Firefox. If you are using a theme, switch to the DEFAULT theme: Tools > Add-ons > Themes '''<u>before</u>''' starting Safe Mode. 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 '''<u>one at a time</u>''' until the problem reappears. '''<u>You MUST close and restart Firefox after EACH change</u>''' 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

  • "Firefox is already running" error

    I am running Windows 7 with 3 different user profiles, all of which run Firefox seamlessly, but one. I have tried the different options listed on the main forum for this; however, the issue persists. I have uninstalled and reinstalled the application, with no success. The only thing I did have problems understanding/completing was finding the profile for the one user>parent.lock file. I never found this file. I'm not sure, at this point, what else to do. I have run a virus scan and it's all good. Any suggestions? What am I missing here?

    I don't have much difficulty with this problem. It's more of an annoyance.
    A ''frequent'' annoyance.
    What I'll do is log in to a page that requires a secure connection, and when I'm finished, to complete the security, I always close the browser. Then, of course, I start the browser up again.
    The problem is, ''Firefox is still shutting down'', and issues this error. Most of the time, I can wait 10 seconds, then start up fine.
    '''So my question is,''' why the heck can't the process that detects that Firefox is still running do the waiting for me? Instead of popping up a message, "Firefox is still running", pop up a message, ''"Firefox is cleaning up from the last shut-down, one moment please"'', then start up again.
    I hate to mention it, but none of Firefox's competitors have any problem with starting up too soon after a shut-down.

  • I'm trying to download ML, and get the product distribution file error. I have repaired the permissions in Disk Utility, I don't seem to have a applestore cache. I am on a corporate network, so am thinking it might be firewall related. Ideas?

    Hello folks
    I've tried every option I can to self support, from disk repair to deleting caches (I don't usually use the appstore so don't have one), and I don't have a pckge file either.
    I'm on a corporate network that restricts access to iTunes, so suspect it may be related to a firewall issue, although it has been relaxed to let me access the app store.
    Any other ideas of what to check myself before I go to tech support, and what do I need to get them to do. They are not really a mac supporting unit, so I need specific instructions.
    I'm on a mac pro, upgrading from Snow Leopard, so download is my only option.
    Thanks

    Read this whole message before doing anything.
    Back up all data.
    Quit the App Store application if it’s running.
    Step 1
    Hold down the option key and select
    Go ▹ Library
    from the Finder menu bar. Delete the following items from the Library folder (some may not exist):
    Caches/com.apple.appstore
    Leave the Library folder open. Try the App Store again. If it works now, stop here. Close the Library folder.
    Step 2
    If you still have problems, quit again. Go back to the Finder and move the following item from the open Library folder to the Desktop:
    Cookies/com.apple.appstore.plist
    Preferences/com.apple.appstore.plist
    Test. If the App Store now works, delete the files you moved to the Desktop. Otherwise, quit again. Put back the files you moved, overwriting the newer ones that may have been created in their place, and continue.
    Step 3
    Launch the Terminal application in any of the following ways:
    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
    ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
    ☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
    Triple-click anywhere in the line below to select it:
    test -d $TMPDIR../C/com.apple.appstore && rm -r $_
    Drag or copy and paste the selected line — do not type it — into the Terminal window. You should get a new line ending in a dollar sign ("$"). Quit Terminal.
    Test. If the issue is still not resolved, post again.

  • 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'''

  • If Firefox is set as the default browser, and any application attempts to open a new window, this fails and I get the error "Firefox is already running..."

    Here is what I am running:
    Microsoft Windows 7, Service Pack 1, Fully updated to 4/10/2012
    Fresh Install of Firefox 11. No add-ons enabled as a result of troubleshooting.
    I am a user with administrator rights
    UAS is disabled.
    To begin, this has been going on Since Firefox 10 or so. A few months now.
    I am able to open Firefox. My add-ons worked (ABP, Flashblock, ABP Element Hiding Helper, IETAB2, Downthemall, Greasemonkey, 4chan extension) had no problems. Firefox is set and has been set for the last two years as my default web browser.
    However Since approximately Firefox 10 or so, maybe before that, If I have a Firefox session open, and any other application attempts to open a session in a new window, I get the Firefox is already running, but not responding error."
    I attempted to follow troubleshooting advice already posted (look for parent.lock files left behind [none present], multiple sessionstore.js files [none present], create a new user profile, attempted to clear out the "read-only" permission in windows 7, however as soon as it is cleared, the read only permission returns.)
    As a last resort, I deleted the Firefox folder, the %APPDATA%/Mozilla directory in its entirety, then utilized CCleaner to remove any and all references to Firefox in the windows registry, then did a full re-install, no extensions installed right now.
    I checked preferences and have the option "open new windows in a new tab" checked off. The problem persists regardless if this option is checked on or off. This problem persists in or out of safe mode, even with the brand new install.
    Test Cases:
    All cases:
    Firefox is selected as the default browser for windows 7
    Case 1: Open a firefox session. Utilize any other program that attempts to open a link to their website in a new browser window or new browser session. Experience "Firefox is already running" error
    Case 2: Open a firefox session. Right click on Firefox on the task bar. Select "open in new window". Experience "Firefox is already running" error
    Case 3: Open a firefox session. Select the Firefox Menu > New tab > New Window. A new window will actually open.
    This is the only method of opening a new window in the same browser session or profile that actually works on my system. Attempting to open a browser session from the task bar "open new window dialog" or opening a new window while a current window/session is running will not open firefox in a new window or a new tab in the current session. The "Firefox is already running, but is not responding" error will occur every time.

    Cor-el's suggestion resolved my problem. Apparently the MOZ_NO_REMOTE variable was set to 1 on my system variables. I never made it, and really have no idea how it got there, but deleting this variable and restarting firefox has resolved the issue. Thanks Cor-el!
    Marking case: Solved
    Solution: Verify the MOZ_NO_REMOTE variable is NOT set to 1. This can be achieved by simply deleting this variable.

  • Firefox is already running but its not

    I booted my computer and tried to open firefox but a windows pops up and say Firefox is already running, but not responding. To open a new window you must close and existing windows and try again.
    The problem is it isn't running. I open my task manager and there is no programs running, I check running processes and nothing to do with Mozilla firefox is in there. How can it already be running if it isn't open?

    Yes I checked the entire list. I even selected to show processes for all users and there is nothing in there about Mozilla. I uninstalled the program and selected to uninstall preferences and profiles too so there was no trace of Mozilla on my computer. I then reinstalled it and same issue. Not sure what you mean go to mozllia.org for the full install?
    I included an image of the error and my open processes. You will see Mozilla firefox in the processes but as soon as I click OK on the error box and the process closes.

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