When I try to open firefox, I get a message that says, "firefox is already running" and to close it or restart my computer when it is NOT running, so I can't get on the internet through firefox. What is wrong?

The information box pops up when I click on my desktop icon for firefox as well as if I try to access it in other ways. I have restarted my computer. I have tried removing firefox and redownloading it. No matter what I do, it still gives me a box saying it is already running, but not responding. When I pull up my taks bar, it is not running! I can't close it as the box suggests because it is not open to do it. I just keep getting a box saying it is already running no matter what I try to do, even though it is not running.

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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When I try to open Firefox, I get a message that says it is already opent and not responding and I need to restart my computer.

This has happened repeatedly and I don't understand.

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.'''
Not related to your question, but...
You may need to update some plug-ins. Check your plug-ins and update as necessary. '''''You are 13 updates behind in Java''''':
*Plug-in check --> http://www.mozilla.org/en-US/plugincheck/
*Adobe Shockwave for Director Netscape plug-in: [https://support.mozilla.org/en-US/kb/Using%20the%20Shockwave%20plugin%20with%20Firefox#w_installing-shockwave Installing ('''''or Updating''''') the Shockwave plugin with Firefox]
*Adobe PDF Plug-In For Firefox and Netscape: [https://support.mozilla.org/en-US/kb/Using%20the%20Adobe%20Reader%20plugin%20with%20Firefox#w_installing-and-updating-adobe-reader Installing/Updating Adobe Reader in Firefox]
*Shockwave Flash (Adobe Flash or Flash): [https://support.mozilla.org/en-US/kb/Managing%20the%20Flash%20plugin#w_updating-flash Updating Flash in Firefox]
*'''''Next Generation Java Plug-in for Mozilla browsers''''': [https://support.mozilla.org/en-US/kb/Using%20the%20Java%20plugin%20with%20Firefox#w_installing-or-updating-java Installing or Updating Java in Firefox]

When I try to update I get a message that says "an error has occurred" and I cannot update like I have been doing for several years

When I attempt to upgrade I am now getting a message that says "an error has occurred" and I cannot activate the upgrades----there are two pending

Disable anti virus software if installed
Make sure the firewall is turned off in System Preferences > Security & Privacy > Firewall
Make sure Gatekeeper is enabled
Open System Preferences > Security & Privacy then select the General tab.
Make sure either Mac App Store or Mac App Store and identified developers is selected.
If that area is grayed out, click the padlock icon to proceed.
OS X: About Gatekeeper

When I try to open my iTunes an error message appears saying "New iTunes Library". What should I do?

When I try to open my iTunes an error message appears saying "New iTunes Library". What should I do?

Hi!
Thanks for contacting us today! I understand you are having issues with updating, and using the device.
I believe that we are aware of the update issue however, it is ultimately the carrier/ manufacturer to provide updates. Please contact the respective company for assistance.
As for device using, and things not working. Please provide us with more details. (Note: the bug may have already been fixed, but is available in a later update).
Thanks!

When I sync my phone it gets to step 6 the does not complete the sync i get a message that says itunes has stopped working and needs to close anyone else have this issue

When I sync my phone it gets to step 6 the does not complete the sync i get a message that says itunes has stopped working and needs to close anyone else have this issue

The same problem here!... My itunes stucks on "preparing to sync" when sync my ipad 2, and stucks on iphone 4 calendar sync...
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Macbook pro 13 i7
Iphone 4
Ipad 2
Thanks!!!

Why can't I access the internet through Firefox?

I can't access the internet through Firefox. It's worked just fine for several years, but it just randomly quit working. I've tried resetting Firefox, uninstalling an reinstalling it, and allowing Firefox through the firewall.

Did you try to remove the current rules for Firefox in the firewall to make ure to create new rules for the current Firefox release?
Do a malware check with several malware scanning programs on the Windows computer. 
Please scan with all programs because each program detects different malware. 
All these programs have free versions.
Make sure that you update each program to get the latest version of their databases before doing a scan.
*Malwarebytes' Anti-Malware: http://www.malwarebytes.org/mbam.php
*AdwCleaner: http://www.bleepingcomputer.com/download/adwcleaner/ http://www.softpedia.com/get/Antivirus/Removal-Tools/AdwCleaner.shtml
*SuperAntispyware: http://www.superantispyware.com/
*Microsoft Safety Scanner: http://www.microsoft.com/security/scanner/en-us/default.aspx
*Windows Defender: Home Page: http://www.microsoft.com/windows/products/winfamily/defender/default.mspx
*Spybot Search & Destroy: http://www.safer-networking.org/en/index.html
*Kasperky Free Security Scan: http://www.kaspersky.com/security-scan
You can also do a check for a rootkit infection with TDSSKiller.
*Anti-rootkit utility TDSSKiller: http://support.kaspersky.com/5350?el=88446
See also:
*"Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

I get a message that says ff is already running but is not responding ,to open a new window, you must close the existing ff process or restart your system, how do i close the existing ff process?

I have windows 7 on dell laptop. I am working on a Word Document and want to go to a diff window for some information. I click on the FF icon on my desktop and get a message that says...FF is already running but is not responding. To open a new window, you must close the existing ff process or restart your system..how do you close the existing ff process?
== This happened ==
Every time Firefox opened
== I got my new dell laptop four weeks ago with window 7 installed

See https://support.mozilla.com/en-US/kb/Firefox+is+already+running+but+is+not+responding

Only on my administrator account firefox will tell me it is already running and to close it or restart my computer. guest account works fine. nothing is running on main account though. after restarting i get the same response.

when i click on the icon to open mozilla, it shows me this: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.
But I do not have anything running?Won't work after restarting, opens just fine on my guest account though?

Do you still have a [http://kb.mozillazine.org/Profile_folder_-_Firefox Firefox Profile Folder] in that account?
* [[Firefox is already running but is not responding]]
* http://kb.mozillazine.org/Recovering_a_missing_profile
* http://kb.mozillazine.org/Profile_in_use

When I try to open iPhoto a box comes up that says "You can't open the application because it may be damaged or incomplete." I just scanned some pictures in, and then this happened.

Does anyone know what to do if you try to open iPhoto and the box comes up and says "You can't open the application iPhoto because it may be damaged or incomplete." Previous to this I added some pictures and documents that were scanned from my Lexmark all-in-one. Now I can't open iPhoto.

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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 get a message that says:boot manager missing..and it will not boot up..what can i do?

When I turn it on ,a screen comes up that says Boot MGR missing..What can I do to fix it?

Hi,
Can you post back with the following.
1. The full Model No. and Product No. of the notebook ( from the service tag underneath your notebook ) - see Here for a further explanation.
2. The full version of the operating system you are using ( ie Windows 7 32bit ).
Regards,
DP-K
****Click the White thumb to say thanks****
****Please mark Accept As Solution if it solves your problem****
****I don't work for HP****
Microsoft MVP - Windows Experience

I have downloaded the 4.3 version of pages and when I try to open documents I receive a message that i must download the newest version. is this not the newest version?

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HT4623 I updated my iphone 4S successfully. But now I get a message that says I need to accept the terms and conditions. When I select the Terms and Conditions, my phone is unable to locate them.

I updated my iphone 4S successfully. But now I get a message that says I need to read and accept the Terms and Conditions. But when I select the Terms and Conditions, nothing appears but a message that says "cannot locate."

Hi bondercin,
Welcome to the Support Communities!
The articles below may be able to help you with this issue.
Click on the links to see more details and screenshots.
Restart and / or reset your device
iOS: Turning off and on (restarting) and resetting
http://support.apple.com/kb/HT1430
Check your settings for Safari -- enable cookies and turn off private browsing
iPhone User Guide - Safari settings
http://help.apple.com/iphone/7/#/iph3d7aa74dc
Also, sign out of your iTunes Store account and sign back in:
iOS: Changing the signed-in iTunes Store Apple ID account
http://support.apple.com/kb/HT1311?viewlocale=en_US
This article provides additional troubleshooting steps for connecting to the iTunes Store:
Can't connect to the iTunes Store
http://support.apple.com/kb/TS1368
Cheers,
- Judy

Why doesn't firefox close out when I'm done with it and close it; when next I try to open firefox again I get a dialog box telling me firefox is open and to close it or restart my computer? I'm tired of doing that one of more times a day.

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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 try to print anything in Firefox, email or internet, I get a message that says printer error and nothing prints. Tried printing same stuff from Internet

When I try to print anything in Firefox, email or internet, I get a message that says printer error and nothing prints. Tried printing same stuff from Internet Explorer it works fine.

hello bdoolen, please try to [[Reset Firefox – easily fix most problems|reset firefox]] and see if this can address the issue...

I can not download the new version of Firefox. I keep getting a message that says "Firefox 5.0.1dmg could not be opened, because an unknown error occurred" HOW do I fix this?

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If you have problems with updating or with the permissions then easiest is to download the full version and trash the currently installed version to do a clean install of the new version.
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Your profile data is stored elsewhere in the Firefox Profile Folder, so you won't lose your bookmarks and other personal data.
* http://kb.mozillazine.org/Profile_folder_-_Firefox

When I try to open firefox, I get a message that says, "firefox is already running" and to close it or restart my computer when it is NOT running, so I can't get on the internet through firefox. What is wrong?

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