WHEN I CLOSE OUT FIREFOX AN TRY TO OPEN IT AGAIN I GET A POPUP TELLING ME IT IS STILL RUNING

I did not have this problem until I updated to 4.1 the older versions worked fine.

You can check the installed Firefox version via Firefox > Help > About Firefox
*https://support.mozilla.com/kb/Finding+your+Firefox+version
You may have a corrupted user agent that identifies you as Firefox/3.0.8
*Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.0.8) Gecko/2009032609 Firefox/3.0.8 SearchToolbar/1.2
See:
*https://support.mozilla.com/kb/Websites+or+add-ons+incorrectly+report+incompatible+browser
* http://kb.mozillazine.org/Resetting_your_useragent_string_to_its_compiled-in_default
See also "Hang at exit":
* http://kb.mozillazine.org/Firefox_hangs
* https://support.mozilla.com/kb/Firefox+hangs

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Photoshop elements 12 won't load up on my PC. The first time I try to load it up I get a large egg timer, which lasts about 3 seconds. The programme then closes and if I try to load it again I get the circular icon which spins for 1 second and disappears.

Photoshop elements 12 won't load up on my PC. The first time I try to load it up I get a large egg timer, which lasts about 3 seconds. The programme then closes and if I try to load it again I get the circular icon which spins for 1 second and disappears. I've tried rebooting several times but nothing happens. Please help!

Hi,
Please try resetting preferences?
On Windows: Goto %appdata%\Adobe\Elements Organizer\12.0\Organizer folder and rename the files “psa.prf” (to say psa_old.prf) and “status.dat” (to say status_old.dat).
Try launching Organizer and see if it launches fine.
Thanks
Andaleeb

I have windows vista on my laptop and when I switch of firefox I can't open it again

until I have restarted the computer , get the message that Firefox is still running in the background and have to disable that first, I don't know where to find where I can disable this can you help?
This happens every time I accidentally close Firefox and want to open it again.
When I want to open Firefox again I have to resatart the computer and then open Firefox.
Its pretty frustrating when this happens.

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

When I close Firefox then try to open it again, it informs me it is already running and continues to do so regardless of how many times I restart the computer.

I bought a new computer. I installed Firefox 7.0 then updated to 8.0. When I was finished with Firefox, I closed it. Later when I attempted to open it I was greeted with the message Firefox is already running. It suggested I restart the computer. I did so and continued to receive the same message. Surely, shutting the computer off should close Firefox. I have to use Internet Explorer to contact you.

Sounds like Firefox is "hanging at exit". That problem is frequently caused by an Extension or a Plugin. Read all of the following articles. 
#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 signed-in to the forum.'''

Why doesn't Firefox close even when I close it. When I try to open it again I get a "Firefox is running, please close before reopening...or something like that", but I can't close it and it's not really open where I can see it.

It just won't close unless I reboot my computer

One situation in which Command+w or Ctrl+w might not work is if the "focus" is in a plugin such as the Flash player used on Youtube after you interact with the player controls. Firefox will continue to send the keyboard input to the plugin until you move the focus back to the page. Does that account for any of the problem?

When I close out Firefox, it arears to close. It returnes me to Desktop; however, it does not close. It keeps running, and because of this, I cannot open it up again without opening the Task Manager and ending the process first. What is causing this?

Firefox works fine except for the hicup of not shutting down. If you don't know what is happening, you won't know why it won't open up.

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

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 '''Processes''' 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 '''before''' 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 '''one at a time''' until the problem reappears. '''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

When I open firefox or try to open any website I get the Error 404 message stating page not found, how do I correct this?

When opening firefox the error 404 immediatly comes up and NO websites (bookmarked or not) will come up, the error 404 message repeatedly comes up. I have deleted and re-installed different firefox versions and nothing has worked yet. What else can I try?

Do a malware check with some malware scan programs. 
You need to scan with all programs because each program detects different malware. 
Make sure that you update each program to get the latest version of the database before doing a scan. 
* http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
* http://www.superantispyware.com/ - SuperAntispyware
* http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page
* http://www.safer-networking.org/en/index.html - Spybot Search & Destroy
* http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free
See also "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked and [[Searches are redirected to another site]]

There used to be a special feature on the previouse versions of Firefox. when you close the firefox with multiple tabs opened it displays an option of saving it or closing without saving. but this version specially the 7th doesnot have that.

specially version 3.6 is good on saving the tabs before closing the firefox. but the latest versions should have had more that just this but it doesnt support the saving tabs or may be i didnt see it there. please if it has this feature let me know.
the other thing is the norton toolbar 2011.7.1.3 is incompatible with firefox 7.

Firefox 4 and later versions save the previous session automatically, so there is no longer need for the dialog asking if you want to save the current session. 
Use "File > Exit" or "Firefox > Exit" (Mac: "Firefox > Quit Firefox") if you want to restore multiple windows. 
You can use "History > Restore Previous Session" to get the previous session at any time. 
You may need to click the orange/gray Firefox button to see History. 
There is also a "Restore Previous Session" button on the default about:home Home page.
Using the "Show my windows and tabs from last time" setting is a more reliable way to restore session data.
* [http://kb.mozillazine.org/Menu_differences Firefox/Tools > Options] > General > Startup: "When Firefox Starts": "Show my windows and tabs from last time"

When I try to open pdf documents I get a message telling me to open adobe reader and accept the end user license agreement. Can anyone help?

This happens ever since I have upgraded to the latest reader for iOS.

Adobe Reader for iOS does NOT show an end user license agreement. It must be something else.
shawiya,
What is the version number of your Adobe Reader?
Would you take a screenshot and attach it to your next reply? On iOS, you can take a screenshot by pressing the Sleep/Wake button while holding down the Home button.
How do I insert an image or video and attach a file?
We should be able to tell a lot about your problem from the screenshot.

When I close out a website it goes to my desk top and then tells me firefox is running and I have to shut down the system

when I close out a website it goes to my desk top and then tells me firefox is already running and I have to shut down my system and bring it back up and wait to log back in. It's quite frustrating.

Try Ctrl>ALT>DEL then click Start Task Manager, then find the process firefox.exe, then click end program, then try opening Firefox again.  done! If that doesn't work, then try re-installing Firefox or going to this link to safe mode area and click continue to safe mode and then try and exit, if this problem still occurs then disable extensions and plugins

Sometimes when I close Firefox and try to open it in few moments it shows me 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, I haven't o

Sometimes when I close Firefox and try to open it in few moments it shows me 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, I haven't opened any additional Firefox related programs, and previous Firefox is closed. First I though it is because of my computer, but then I discovered that other people have the same problem as well
== This happened ==
A few times a week
== some 2 month ago ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.5.30729; InfoPath.2; .NET CLR 3.0.30729)

Hi Andis.
First of all, this is completely normal behavior, although it's a bit irritating, I know. What happens is that when you close Firefox, despite the window disappearing right there and then, Firefox keeps running for a little bit until the whole closing procedure is completed. This can take a fraction of a second on fast computers, or can take a few seconds on slow computers or when Firefox is storing a large session (if you save your tabs). All you have to do is wait a bit until Firefox closes, and then open it again.
To see if it's still running, you can press CTRL+SHIFT+ESC and then, under the Processes tab, you can see if firefox.exe is still there. If it's taking an unusual amount of time to close (which happens very rarely, and only if the browser freezes on exit), you can force the application to terminate from this application (task manager).
Firefox 4.0 will reduce by 97% the time it takes firefox.exe to close, so this problem will be basically erased for Firefox's next version.
Until then, I can recommend you this extension, which helps you restart your browser more easily and without bothering about closing times:
https://addons.mozilla.org/en-US/firefox/addon/3559/
Hopefully this will help.

FF doesn't open a new window , and doesn't open at all when I close it and try to open it again.

Initially when I start my PC Windows 7 Ultimate , FF opens fine , but it doesn't open a new window when I click on the option "Open a new Window " in the taskbar .When I right-click a tab and select the option "Move to a new Window" then too it doesn't work. Next when I close FF and and try to reopen it , it doesn't open at all.I have FF v34.0.5.

Gnome-shell issue. You can disable desktop management as a temporary fix, but the next gnome-shell update will fix the problem.
https://bbs.archlinux.org/viewtopic.php?id=175993
https://bugzilla.gnome.org/show_bug.cgi?id=722510
https://bugzilla.gnome.org/show_bug.cgi?id=722690

I have a big crossbar mark over my FF4 icon after I've installed and replaced FF3. When I try to open the software, I get "You can't open the application "Firefox" because it is not supported on this architecture." What's up with that?

I have a big crossbar mark over my FF4 icon after I've installed and replaced FF3. When I try to open the software, I get "You can't open the application "Firefox" because it is not supported on this architecture." What's up with that?

Firefox 4 requires at least OS X 10.5 and an Intel Mac. There is a third party version of Firefox 4 that runs on OS X 10.4/10.5 and PPC Macs, for details see http://www.floodgap.com/software/tenfourfox
If you prefer, you can get the latest version of Firefox 3.6 from http://www.mozilla.com/en-US/firefox/all-older.html

My problem is after updating to Yosemite does my mail client any longer. I can not even open the mail, and when I "forced closes" mail and try to open it again to go in the entered settings running the colored wheels around and allows me only to forc

My problem is after updating to Yosemite does my mail client any longer. I can not even open the mail, and when I "forced closes" mail and try to open it again to go in the entered settings running the colored wheels around and allows me only to forcing close again? does anyone have a solution to the above problem?

You mean the default OS X mail app? Try reinstalling OS X Yosemite if that's the case.
If you are referring to 3rd party mail applications, that's a compatibility issue. Some apps don't work in the new operating system. You have to wait until the developer updates the app, or you have to revert back to Mavericks to continue using it.

WHEN I CLOSE OUT FIREFOX AN TRY TO OPEN IT AGAIN I GET A POPUP TELLING ME IT IS STILL RUNING

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