Firefox will not re-start without "ending process" with Windows Vista Task Manager.

Error 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.”
Have to start Task Manager and then end firefox.exe process.
Thanks all.

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information.
Note: ''This will cause you to lose any Extensions, Open websites, and some Preferences.''
To Reset Firefox do the following:
#Go to Firefox > Help > Troubleshooting Information.
#Click the "Reset Firefox" button.
#Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
#Firefox will open with all factory defaults applied.
Further information can be found in the [[Reset Firefox – easily fix most problems]] article.
Did this fix your problems? Please report back to us!

Similar Messages

Firefox will not open because it thinks it is open, but task manager says it is not open.

I cannot get firefox to open. If I try to uninstall it says I must close it. If I try to download it it says I must close it.

Sounds like Firefox is "hanging at exit". That problem is frequently caused by an Extension or a Plugin. Read all of the following articles. 
NOTE: Establish a habit of exiting/closing Firefox with Firefox button > Exit or File > Exit to allow an orderly shutdown of Firefox and closing of all of the files that Firefox has open.
#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.org/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.org/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 an Extension or Plugin causing the problem
#*See:
#**[[Safe Mode]] and [http://kb.mozillazine.org/Safe_Mode Safe Mode (Mozillazine)]
#**[http://support.mozilla.org/en-US/kb/Troubleshooting+extensions+and+themes Troubleshooting extensions and themes]
#**[http://support.mozilla.org/en-US/kb/Troubleshooting+plugins Troubleshooting plugins]
#**[http://support.mozilla.org/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.'''

Firefox will not load pages. No problem with Windows Explorer. There is no malware.

No matter what page, it takes forever to load but many times I have to reselect the address and hit enter again and again. This happens with the NY Times, and most of my bookmarks. There is no problem with Explorer which I do not like to use. I have scanned for Mal-ware, viruses etc and nothing. It is becoming increasingly annoying and forces me to use MS. It has been ongoing with Facebook as well. What is going on?!

The problems are getting worse. I think I will have to give up on Firefox and go with the Google browser. No problems with IE just firefox and I can't take it anymore.

ITunes will not install correctly on my PC with Windows 8. Any hints?

iTunes will not install correctly on my PC with Windows 8. Any hints?
The error message reads:
iTunes.exe - Entry Point Not Found
The procedure entry point ADiAdlD_AcquireMatchSlotIfNecessary could not be located in ghe dynamic link library C:\Program Filess(x86)\iTunes\iTunes.dll.

See this User Tip by turingtest2
Troubleshooting issues with iTunes for Windows updates

Can not print PDF file at all with Windows Vista

I have Acrobat Reader 9.3.2. I am working off of Windows Vista on my laptop to a network wireless printer (Brother MFC 9440). I am unable to print pdf files. About a week ago, we had problems with our printer printing anything. I had to uninstall it and reinstalled it and it now works fine except the pdf files. I have had no problems printing any other files on any other programs but this one. I am unsure what specific "updates" I ran while trying to figure out printers issue. When in Reader, everything seems normal. When I hit print, the printer box pops up as normal and then I hit ok, my printer icon at bottom pops up for about 5 secs and nothing happens. I know that I am connected to printer due to all other programs can print. I do not have access to another printer to see if pdf will print on another printer, but do know that the other two computers used in this office (mac laptop and mac desktop) both are able to print pdf files to this printer without a problem. I have gone thru all the other help steps to try to resolve the situation: it still will not print when I hit "print as image", made sure that my printer is marked as network and is default printer, made sure to check that I have all upgrades, etc. I am not getting any error message, so am unsure what is wrong. It just will not print. Is there anyone that could give me some suggestions that I have not tried? I would REALLY appreciate it! Thanks!

Another user experience exactly the same issue with vista and printing from Adobe reader.
http://forums.adobe.com/thread/642000?tstart=1 Its copied below as a reference.
The problem was on my Auntys PC, and yes i did updated Adobe Reader to v9.3.2 and still the same issue underlned below.
My Aunty lives 70 miles away so will not be trying anything else.
The printer works fine with every other application only Adobe Reader files will print.
May 19, 2010 7:31 AM
Can not print PDF file at all with Windows Vista
I have Acrobat Reader 9.3.2. I am working off of Windows Vista on my laptop to a network wireless printer (Brother MFC 9440). I am unable to print pdf files. About a week ago, we had problems with our printer printing anything. I had to uninstall it and reinstalled it and it now works fine except the pdf files. I have had no problems printing any other files on any other programs but this one. I am unsure what specific "updates" I ran while trying to figure out printers issue. When in Reader, everything seems normal. When I hit print, the printer box pops up as normal and then I hit ok, my printer icon at bottom pops up for about 5 secs and nothing happens. I know that I am connected to printer due to all other programs can print. I do not have access to another printer to see if pdf will print on another printer, but do know that the other two computers used in this office (mac laptop and mac desktop) both are able to print pdf files to this printer without a problem. I have gone thru all the other help steps to try to resolve the situation: it still will not print when I hit "print as image", made sure that my printer is marked as network and is default printer, made sure to check that I have all upgrades, etc. I am not getting any error message, so am unsure what is wrong. It just will not print. Is there anyone that could give me some suggestions that I have not tried? I would REALLY appreciate it! Thanks!

All my purchased song from iTunes are not playing complete (iPod and computer with Windows Vista), unexpectedly stops and continues with next song. What am I doing wrong?

All my purchased song from iTunes are not playing complete (iPod and computer with Windows Vista), unexpectedly stops and continues with next song. What am I doing wrong?

Are the songs playing whole in iTunes? if not download them again.
else read this Apple Support Article on your problem
Have a nice day!

Will the wired Apple Mighty Mouse work with Windows Vista SP1?

The above question. Will I have to download any extra drivers? Is the MM really that bad? Thanks.

*" Will the wired Apple Mighty Mouse work with Windows Vista SP1?"*
Officially...No: http://www.apple.com/mightymouse/specs.html
In reality... probably. Why would you want it anyway? There are many many better mice out there.

Will not close completely, 572K of memory still shows in Task manager and can not force an end, thus Firefox will not restart

When I exit Firefox and try to restart I get a message that Firefox is still running. When I go to Task Manager it shows 572k of memory being used by firefox.exe. When I hit "End Process" nothing happens it still there. The only way I can restart Firefox is to restart my computer. I have been running Firefox on this machine running XP for about 18 months but this problem just started a week ago. I have even re installed Firefox.

https://support.mozilla.com/en-US/kb/Firefox%20hangs#w_hang-at-exit

Firefox will not launch in any mode. I cannot open Profile manager to change to another profile. No change with delete and reload of program.

I've been using Firefox for years. Had this happen once before but was able to open the profile manager and change to a new profile. At this point I can't even do that. Suggestions??

[[Basic Troubleshooting]] has a "clean reinstall" section at the end that does not require you to open Firefox.
In any case, you should first take a look at the [[Firefox will not start]] article, which I mentioned in my first post. If that doesn't help, also check out http://kb.mozillazine.org/Browser_will_not_start_up#Windows-specific_problems

Firefox will not enlarge pictures from ebay in small windows.

I cannot view pictures that require a new window..
Ebay and some sites have it set up where pictures are viewed in another window. For some reason my firefox will not do this.

I could neither enlarge images nor open a link in a new [pop-up] window. Both problems solved by disabling FoxyProxy extension.

Firefox will not respond after loading it onto my Windows 7 computer

I downloaded Firefox browser to my new Windows 7 computer and installed the program. I used Firefox for a while without any problem for a while and logged off of the internet and shut my computer down. The next morning, I turned on my computer, and clicked on my Firefox icon. I got a blank screen with the little aqua circle working. Then a message appeared in the upper left hand corner of my computer display, which read "Mozilla Firefox Not Responding". I closed the program. ''' By the Way, I installed Google Chrome web browser and am currently using it it without any problem. I would prefer to use Firefox though.'''

Does Firefox starts up when you first open it after rebooting the computer but hangs the next time you try to start it? If so, then there's a [https://bugzilla.mozilla.org/show_bug.cgi?id=1005487 bug] in Firefox 29 where Firefox hangs on exit when the setting "Clear history when Firefox closes" is selected, so that you get an "already running but not responding" error the next time you ttry to start it. In that case, end the firefox.exe process in the Windows Task Manager (or reboot the computer) then reset your Firefox Privacy options and UNCHECK the option "Clear history when Firefox closes". See this article for details:
[[Settings for privacy, browsing history and do-not-track]]
If that's not the problem and Firefox still not open even after rebooting the computer then try starting in Firefox Safe Mode by holding down the shift key while starting Firefox. If Firefox starts then see the [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] article to narrow down the cause.

Firefox will not close properly when I close a window. Is this a know issue?

I go to http://www.1035thearrow.com/ and click lisen live on top. it opens another window if I try to close that window Firefox crashes. If this is the last window I close it will partly close (in windows task manager it wont show up in applications) and it won't let me start a new session of Firefox until I stop the firefox.exe process in the task manager. When I restart Firefox it will bring that window back up with the same problem. Is this a known issue and if not how do I report it.

I go to http://www.1035thearrow.com/ and click lisen live on top. it opens another window if I try to close that window Firefox crashes. If this is the last window I close it will partly close (in windows task manager it wont show up in applications) and it won't let me start a new session of Firefox until I stop the firefox.exe process in the task manager. When I restart Firefox it will bring that window back up with the same problem. Is this a known issue and if not how do I report it.

Firefox will not display certain features of websites in windows 8.1

I've upgraded to windows 8.1. Installed Firefox (now ver. 26) right away. I go to the same websites to pay bills, do work stuff etc for the past few years.
Those websites work fine most of the time. RANDOMLY (at least to me) 2 websites have been giving me trouble for certain features:
1. Banking website will not display my online bill pay. It does not crash, it just says "unable to display page" and for me to check my firewall etc, reload page, etc. When I go to other features for my bank, it works fine except for the bill pay.
2. My work website has a feature to display paychecks etc. It give me the same message of "unable to display".
Here's the weird thing: I open and close firefox a few times and the page "magically" works.
I load the same page in IE 11 and I have the same problem.
I load the same page in chrome 32.0.1700.107m and I never have this problem.
I load the same pages in firefox ver. 26 on a windows 7 machine and it work just fine.
I'm at a loss since Firefox is my primary browser and only have the other browsers for the occasional incompatibilities.
Any ideas? I've concluded that it's a windows 8.1 issue/compatibility but would like to try other solutions before I downgrade back to windows 7.
FYI: I've turned off windows firewall and the same issue still occurs. I've updated to the latest adobe flash, shockwave, and Java. I only have one extension installed - adblocker (which is disabled for these websites).
Thanks in advance for any help.

Current Firefox versions have enabled a built-in PDF Viewer that doesn't have all features that other PDF readers like the Adobe Reader have or may not function properly otherwise.
You can change the action for Portable Document Format (PDF) from Preview in Firefox to use another application like the Adobe Reader or set to Always Ask in "Firefox > Options/Preferences > Applications".
You can set the pdfjs.disabled pref to true on the about:config page to disable the build-in PDF viewer.
You can check the value of the plugin.disable_full_page_plugin_for_types pref on the about:config page and remove the application/pdf part if present or reset the pref to the default via the right-click context menu if you want to display PDF documents in Firefox with another application (i.e. not the built-in PDF Viewer).
See also:
*https://support.mozilla.org/kb/view-pdf-files-firefox-without-downloading-them

Firefox will not load, have uninstalled, reinstalled, stuck with explorer and unhappy.

After updating, firefox stopped loading. Have tried nummerous uninstall, reinstallation. But still after double-clicking the firefox icon (or opening in any way), the computer thinks about for a sec and then...nothing happens. I have opened up task manager and closed the adnousium of firefox.exe's that pile up after double-clicking.

Hi Johnynutz, First of all try to check that security software is not blocking Firefox. A new version may not be recognised, and in these circumstances before attempting to start Firefox always check in Task Manager that no instance of Firefox.exe or plugincontainer is left running.
Next It is probably worth seeing if you can open the Firefox profile manager, if so you may create a new profile for Firefox and try to restart it with that new profile. Standard reinstalls do not remove the profile (do NOT attempt profile removal unless you have backed it up)
* see [[Use the Profile Manager to create and remove Firefox profiles#w_creating-a-profile]]_creating-a-profile
If that fails then it is necessary to re-install firefox, and this time use a clean re-install. Note it is the program files that are being removed NOT the profile files. Do not use any option from Windows or Firefox that removes personal information, because that will destroy bookmarks and passwords etc.
* see [[Troubleshoot and diagnose Firefox problems#w_7-reinstall-firefox]]_7-reinstall-firefox
Try starting the new install with your original default profile,and the newly created one.
Please post back with how you get on.

Firefox will not restore previous session in the same window?

Hello,
Every time I open Firefox and click the restore previous session button at the bottom nothing happens. That's the first part of the problem. Next, when I click on my history and click restore previous session, it does so but opens them all in a new window. It was only 3-4 days ago that this started happening. I would like to change what ever is causing this back to how it was as it is quite annoying when I have pinned tabs and I have to keep re-pinning them.
I am running the Developer version of Firefox.
Thank you.

Hello,
'''Try Firefox Safe Mode''' to see if the problem goes away. [[Troubleshoot Firefox issues using Safe Mode|Firefox Safe Mode]] is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes).
'''If Firefox is open,''' you can restart in Firefox Safe Mode from the Help menu:
* Click the menu button [[Image:New Fx Menu]], click Help [[Image:Help-29]] and select ''Restart with Add-ons Disabled''.
'''If Firefox is not running,''' you can start Firefox in Safe Mode as follows:
* On Windows: Hold the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* On Mac: Hold the '''option''' key while starting Firefox.
* On Linux: Quit Firefox, go to your Terminal and run ''firefox -safe-mode'' (you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
When the Firefox Safe Mode window appears, select "Start in Safe Mode".
;[[Image:SafeMode-Fx35]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, theme, or hardware acceleration. Please follow the steps in the [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] article to find the cause.
''To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
When you figure out what's causing your issues, please let us know. It might help others with the same problem.

Firefox will not re-start without "ending process" with Windows Vista Task Manager.

Similar Messages

Maybe you are looking for