On a frequent basis when I go to open Firefox, I get a message saying it is already running and can't be opened. This happens on two of my XP computers. The only way I can open it is to restart the computer.
The details are in the question. I have to restart the computer to get Firefox to work a few times a week
I will try to always use "file - exit" to close it to see if that fixes the problem, but with older versions, X ing out worked OK all the time. Something may have changed with this later version.
Thank you
Similar Messages
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When I try to start Firefox, I get a message that it is already running, but not responding and that I should close it before trying to run another Firefox. But I cannot find a way to close Firefox program that is not running as far as I can see. I tried uninstalling and reinstalling Firefox, but that did not work. I've tried various other things, but no luck. I thought programs should stop when the computer is turned off, but that didn't work either.
How are you opening the Profile Manager?
*http://kb.mozillazine.org/Profile_Manager
Sounds that Firefox is still or already running.<br />
See:
*http://kb.mozillazine.org/Kill_application -
When I try to open Firefox I get a message saying it is already open. However it is not open and i cannot access Firefox
See:
* http://kb.mozillazine.org/Recovering_a_missing_profile
* http://kb.mozillazine.org/Profile_in_use
* https://support.mozilla.com/kb/Firefox+is+already+running+but+is+not+responding
If it happens after you've closed Firefox and want to restart the see these:
See "Hang at exit":
*http://kb.mozillazine.org/Firefox_hangs
See "Firefox hangs when you quit it":
*https://support.mozilla.com/kb/Firefox+hangs -
Firefox will close unexpectedly then when I try to open it I get a message saying it is already open and I must close it first. I cannot find it open anywhere and then I must reboot to open Firefox again.
See "Hang at exit":
* http://kb.mozillazine.org/Firefox_hangs
* [[Firefox hangs]]
See also:
* http://kb.mozillazine.org/Firefox_crashes -
Everytime I open itunes I get a message saying itunes has stopped working and windows is looking for a solution
I have the same issue. An iTunes help page (iTunes for Windows Vista, Windows 7, or Windows 8: Fix unexpected quits or launch issues - Apple Support) suggested I hold down shift and control when clicking to open iTunes, which opens iTunes fine for me. That would mean the problem is in the third party plug-ins that work with iTunes. However, the help pages did not say what to do with the plug-ins once I knew that was the issue. The pages said to find the plug-ins and move them to the Desktop, which I did. That's where the help pages stopped, which is ridiculous. Does anyone know what to do from there?
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<blockquote>Locking duplicate thread.<br>
Please continue here: [[/questions/880054]]</blockquote>
Question
Every time I try to open Firefox I get a popup saying it is already open, and to close it or restart; but it is NOT open, and restarting doesn't heDuplicate Thread LOCK please
* Continue here - https://support.mozilla.com/en-US/questions/880054 -
Following an upgrade of my OS from XP to Vista, I tried to point the new installation at my old profile. Now when I try to start FF, I get a message saying that it is already running and I should reboot to clear the problem. I've done that but the problem remains. I have uninstalled firefox and reinstalled v4 beta. The problem remains. Any ideas?
OK, I had moved the profile file inside the profile folder which was created when I installed FF, to the main FF folder. I then took the equivalent file which existed under XP before my upgrade to vista, and moved it into the new Profile folder. That's when I hit the problem described in the initial question.
So, what I did following Tony's response was to move the bookmarks password and cookies files into the profile created on the install. I then moved that file into the profile folder and moved the one I'd saved from XP, out to the main FF folder.
Started FF and voila! All working fine. Thanks for your help. -
Turned on laptop (rebooted) after being away from it for a few hours. Went to open my home page. Error message popped up saying Firefox is already running and must be closed. I closed it and another error message popped up saying Firefox can't open - incomplete or missing files.
I went into Processes to close Firefox. Selected 'end process' but nothing happened.
Tried to use Internet Explorer but it just gets hung up. Cannot access anything.
And, because I can't open Firefox, I can't go a refresh.
Everything was working just fine a few hours ago.
Any thoughts?What is the computer system and Firefox on the bad computer?
Separate Issue;
Your System Details on this computer shows;
Multiple versions of your Adobe programs.
Having more than one version of a program may cause issues.
Go to '''adobe.com''' and download the full installers after removing
all of the old programs.
Start '''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in Safe Mode]''' {web Link} by holding down the '''<Shift><br> ''(Mac Options)'' ''' key, and then starting Firefox. Is the problem still there?
This is not a cure but will make it easier if Firefox locks up in Windows.
'''https://support.mozilla.org/questions/997866''' {web link} -
I always close Firefox when I am finished with the web. When I try to open it later, I often get a message saying that firefox is currently running, so close it first. As far as I can tell, firefox is not running. The message then says to restart your computer and try again. I restart my computer and then firefox opens.
https://support.mozilla.com/en-US/kb/Firefox%20hangs <br />See '''hang-at-exit'''
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When I try to print photos in Iphoto 11 I get a message saying there are no themes installed and it will not let me print. This never happened in previous Iphoto versions and there is no link to get themes. How can I get these themes?
Reinstall.
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/var/db/receipts/
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A Finder Window will open at that location and you can remove the iPhoto pkg files.
3. Re-install.
If you purchased an iLife Disk, then iPhoto is on it.
If iPhoto was installed on your Mac when you go it then it’s on the System Restore disks that came with your Mac. Insert the first one and opt to ‘Install Bundled Applications Only.
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I've been having problems with pdf and Firefox on my iMac. In the absence of being able to find an 'uninstall' function (and reinstall with a newer version), I deleted Firefox by dragging the application item to the trash and deleting. Then I downloaded a new Firefox version 5. But, when I try to open it, the above message comes up. This happens even if I shut down and restart. what do I need to do?
I have tried everything I could to fix this, but some things require actually being on Firefox, and since I cannot get on, I cannot click on the tabs to do it. I have even totally uninstalled firefox, and that has not fixed this. I still get the same message that firefox is running and I need to close it or restart (which I have also tried dozens of times). I have removed things like Java, and that has not helped either. If I cannot even get on line in firefox, how can I fix this. I am not crazy about using internet explorer, but right now, it is my only option. I even tried to start in safe mode, and the same message box pops up!
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Cannot open Firefox since I connected to wireless network. IE works ok
See "Firefox connection settings" in [[Server not found]]
You can find the connection settings in Tools > Options > Advanced : Network : Connection<br />
If you do not need to use a proxy to connect to internet then select No Proxy -
There are two separate desktops on this computer, one for me and one for another user. Her Firefox is not affected. I have looked everywhere for this second copy supposedly running but I don't see how it can be because I have shut down all programs several times.
There are a few possible causes for that error, for details see [[Firefox is already running but is not responding]].
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Got a new iMac 27" for Christmas (well a little after) and tried using Migration Assistant to transfer some files. I can't get past a window on the PC that pops up indicating Quit Other Programs Before you can transfer your information, the following programs must be shutdown: Windows Mail Close these programs and run Migration Assistant again. If these programs do not appear to be running, restart your computer and try again.
I've rebooted. I've searched Task Manager - Applications, Processes and Services and there are no references to WMail. I don't or haven't knowingly used Windows Mail and Outlook isn't even installed on my PC. Does anybody know how to get around this without using external drives, USB flashdrives, etc.Lots of fun.... The superdrive in my Macbook seems to have gone off kilter since my install. Now the CD-R won't work regardless of which operating system I use. Normal CD's and DVD's are fine, but any CD-R is taken as a blank disk.
Using an external CD drive solved this problem. -
This message appeared in the last 2 weeks. I was traveling and using a variety of internet portals. But it's still appearing now that I'm home, so that probably is not a factor. I have Firefox set for auto download/install of updates.
Firefox 3.6.16 has a newer build and release date than Firefox 4.0 does.
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