Why do I have to use task manager to close FF after I exit FF?

I use Firefox close it like normal. If I start it again it will not open and I get and error message "firefox working with other program, try closing firefox".
I then open the task manager, end process, Firefox*32.~.
I thought maybe it could have been a plug so I disabled all plug-ins. Restated FF it went to google/FF home page. I closed firefox at the X. Opened the task manager and it was still running in the end process tab.

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.
In case you are using "Clear history when Firefox closes", try to exclude the clearing the Cookies
*Tools > Options > Privacy > Firefox will: "Use custom settings for history": [X] "Clear history when Firefox closes" > Settings
*https://support.mozilla.org/kb/remove-recent-browsing-search-and-download-history

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Why do i have to use task manager to end firefox even after i close the website

every time i go to close firefox, i use either the X or file exit.
then i go to the icon to launch the program (firefox) i get a pop up that tells me firefox is still running to maybe restart my computer.
the only way i can override this is by using "task manager" look for the icon and end the process.
then i can reopen the browser

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.
In case you are using "Clear history when Firefox closes", try to exclude the clearing the Cookies
*Tools > Options > Privacy > Firefox will: "Use custom settings for history": [X] "Clear history when Firefox closes" > Settings
*https://support.mozilla.org/kb/remove-recent-browsing-search-and-download-history

Firefox is totally unresponsive, the page loads but all buttons are disabled. I have to use task manager to close it.

Page loads but totally unresponsive!

Troubleshooting extensions and themes
* https://support.mozilla.com/en-US/kb/Troubleshooting%20extensions%20and%20themes
Update All your Firefox Plugins
* https://www-trunk.stage.mozilla.com/en-US/plugincheck/
* http://www.mozilla.com/en-US/plugincheck/
** Remove Checkmark from Downloading other Optional Softwares with your Plugins (e.g. Toolbars, McAfee, Google Chrome, etc.)
Clear Cookies & Cache
* https://support.mozilla.com/en-US/kb/Template:clearCookiesCache
Clear the Network Cache
* https://support.mozilla.com/en-US/kb/How%20to%20clear%20the%20cache#w_clear-the-cache
Troubleshooting plugins
* https://support.mozilla.com/en-US/kb/Troubleshooting%20plugins
Check and tell if its working.

All open windows lock up, cannot minimize/close, must use task manager to close everything

I've been using Mozilla Firefox for a few years and love it. My home page is Google News, and Google is my chosen search engine. For the last three weeks, whenever I have Firefox/Google news open, then open another program, like Word, Quicken, maybe a downloaded game site, everything locks up - every single page including my Mozilla Firefox, my gmail account and whatever other page I have tried to open. I cannot minimize any screen, cannot X close any screen, this includes the original open Firefox Mozilla screens. The only way to be able to do anything on any screen is to use Task Manager to close the windows. My AVG protection runs scans every night. I have gone in and run my Malware protection program, another AVG scan, updated everything, flash players, run checks everywhere. Even ran a computer degrag, yet still the problem persists.
What now? I am frustrated having to completely shut down all programs running with task manager before I can proceed with any program.

I found that logging into Google Docs would lock it up EVERY TIME. So I disabled every one of the Add-Ons one at a time, and found the offending Add-On: Shockwave Flash 11.3.300.268. Disable that one and see if it solves your problem, it did mine.
EDIT: Disabling this means you can't watch YouTube videos. The best fix is to do a search for Adobe's earlier versions of Flash. Uninstall Flash Player from your computer and reinstall an earlier version. I am successfully using 11.3.300.265.

When re-starting FF, after a close, FF says that there is FF already running. Have to use task m. to close firefox.32*exe.

after using task manager to close the firefox.32*exe process, then FF will restart properly. Doesn't seem to happen if the laptop is powered off.

Must be the "hang at exit" problem. You already know how to do Step1; now just determine which Add-on (Extension or Plugin) is causing the problem. 
#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]
#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.'''

Can't close indesign. have to use task manager repeatedly.

when closing out indesign CS5 it shows a few popups in the upper left corner really fast (it does it when i save now in illustrator as well) and then doesn't close. i have to open task manager where it is listed as "not responding" and close it every time. i have restarted and run defrag and disk cleanups and it doesn't help.

when i turn off the auto-activation feature it seems to be shutting off
properly. it was set to turn off fonts upon closing so i bet that is
what was causing issues. i turned it back on and indesign closed fine so
i'm not sure if the issue is fixed or not. turning it off seems to have
stopped the weird popups in indesign and in illustrator when i turn it
off in that as well. so it appears to be the suitcase fusion 3
auto-activation causing problems.
as for the forums, when logging back into adobe forums it tells me i
need to select a screen name even though i have one and won't let me
continue since mine is marked as being used. so i still can only reply
using email. i have attached screenshots anyway just in case it might be
something else.
http://i41.photobucket.com/albums/e290/vanhoosedesign/Indesign1.jpg
http://i41.photobucket.com/albums/e290/vanhoosedesign/Indesign2.jpg

Won't send.Spell check pops up.Have to use Task Manager to start over

1.I address an email to send. 2.Type in the subject. 3.Press enter to fill the message. I type a few letters, when 4.a pop-up appears for spell check. end of story. I cnnot do anything. Cannot delete, cannot send.
I have to go to task manager and close everything and start over.
E

I have a customer experiencing exactly the same issue. Their computer is running Windows 7 Pro with Office 2007 SP3. After seemingly exhausting all troubleshooting options, I backed up their data, formatted the hard drive and performed a clean install of
Windows and all their applications. It didn't solve the problem!
What's strange is the customer also has a laptop computer, running the same version of Outlook, and that doesn't experience any problems connecting to Office 365 on the same network.
My next step is to send the customer a new ADSL modem/router to try.
I have another customer on Office 365, also running Outlook 2007, and they also experience issues with emails sitting in the outbox while Outlook displays the status message “Outlook is trying to retrieve data from the Microsoft exchange server outlook.office365.com.”
In this case Outlook doesn't freeze/stop responding, like it does for the first customer I mentioned.

When I close firefox it doesn't close. I go to reopen it and it says that it is already running. I have to use task manager to end process to close it before i can log back on.

After browsing and I close Firefox it appears to close.
However when I go to reopen it later I get a message that Firefox is already open and I need to close it. The only wany I can close it is by using Task Manger to end process.

Must be the "hang at exit" problem. You already know how to do Step1; now just determine which Add-on (Extension or Plugin) is causing the problem. 
#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]
#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.'''

Fire fox not responding, locks computer, have to use task manager to reset

Firefox continually stops responding when I click on a bookmark. I get the info at the top of my screen that Firefox is not responding. Now if I go to MS office and am working in Word with Firefox in the background, word freezes. I go to Task Manager, it says Firefox not responding. End task and office works. Even without office running, I still get the not responding problem. I use Windows 8.1 on a Dell desktop. This problem has been happening since Friday the 21st.

Problems with bookmarks and history not working properly can be caused by a corrupted places.sqlite database file.
You can check for problems with the places.sqlite database file in the Firefox profile folder.
*http://kb.mozillazine.org/Bookmarks_history_and_toolbar_buttons_not_working_-_Firefox
*https://support.mozilla.org/kb/Bookmarks+not+saved#w_fix-the-bookmarks-file

What is the cause of Firefox seizing up and having to use task manager to close down

When I use Firefox within 2 pages it seizes. When you try to click on anything I hear a ding with no response, even when you try to shut it down. You have to shut it down with Task manager. I have uninstalled it and reloaded but the same thing happens. When I use Explorer I have no troubles. I need Firefox as a site that I use only works with Firefox. This problem has occurred after the recent upgrade

Start Firefox in [[Safe Mode|Safe Mode]] to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
Which security software (firewall, anti-virus) do you have?

Having problems opening firefox (vista) i have to goto task manager and close process all the time just to reopen?

hi i have just recentley started having problems opening firefox up (before update) i use vista, i can double click on icon and nothing happens but when i turn pc off it pops up as the screen is going off very strange? the only way i can get it to work is by going in to task manager and ending firefox process yet there isnt firefox running????

yea thanks thats the issue there is nothing in applications for firefox so i cant close anything there but in processes there is Firefox.exe useing 30,000k so i close that, but im even stuggling with that now to get firefox working now i just had to do that process around 10 times!!!!! and then only with right clicking firefox in start menu

I have Firefox 3.6.13 with Firefox for Yahoo 1.7 on Win XP and when I close the browser window, I can't open it again without using Task Manager to close firefox.exe any suggestions?

This started when I first set started using Yahoo Messenger. It appears to me that Yahoo messenger is keeping the application firefox.exe open in the background and this prevents the browser from opening. The only thing I can't understand is why the broser will open the first time with Yahoo Messenger running.

See "Hang at exit":
*http://kb.mozillazine.org/Firefox_hangs
*https://support.mozilla.com/kb/Firefox+hangs

Sometimes I have to use Task Manager to 'end process' Firefox before I can open it (not shutting down cleanly from previous use)

Question seems self-explanatory

See "Hang at exit":
*http://kb.mozillazine.org/Firefox_hangs
See "Firefox hangs when you quit it":
*https://support.mozilla.com/kb/Firefox+hangs

When I close Firefox by clicking on X in the upper right corner of Vista, Firebox doesn't close and the next time I click on FireFox I get a message that FF is still running but not responding. I use alt,ctlr,delete to use Task Manager to close FF. Why?

The details are in the question. Don't know what else to add.

https://support.mozilla.com/en-US/kb/Firefox%20hangs (See '''hang-at-exit''')

Frequently, when waking the computer up from Standby and opening a new browsing session, I get a message that Firefox is already running and needs to be closed, even though it was closed during the previous session. I use Task Manager to close it.

Internet connection is AT&T highspeed DSL via Westell modem. Antivirus is AVG 2011. OS is XP Home SP2, circa 2002.

* [[Firefox is already running but is not responding]]
-> Profile in use
* http://kb.mozillazine.org/Profile_in_use
Check and tell if its working.

Why do I have to use task manager to close FF after I exit FF?

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