When I try to activate Firefox, I get the message that it's already running. I have to log out or restart to be able to activate it. I have tried updating and reinstalling, but to no avail. Any suggestions?

I have updated the program several times and today uninstalled it and reinstalled it again. The second time I used it, i was told it was already running, though I had closed my internet page. Any suggestions will be appreciated.

Your above posted system details show outdated plugin(s) with known security and stability risks.
*Next Generation Java Plug-in 1.6.0_15 for Mozilla browsers
Update the [[Java]] plugin to the latest version.
*http://java.sun.com/javase/downloads/index.jsp (Java Platform: Download JRE)

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When I try to start Firefox, I get a message that it is already running but not responding and I can't run another Firefox at the same time. I uninstalled and reinstalled. No change. Tried various other suggestions. Help!!

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. 
See:
*http://kb.mozillazine.org/Kill_application

When I try to open Firefox, I get a message that one is already open, though I'm not able to access it. How can I eliminate the invisible version?

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!

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

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

HT4059 While downloading a book from iTunes, my internet service was interrupted and i didn't get the entire book. Now when i try to download it, i get the message that i already have downloaded it. It hit the download button in the purchased section, and

While downloading a book from iTunes, my internet service was interrupted and i didn't get the entire book. Now when i try to download it, i get the message that i already have downloaded it. It hit the download button in the purchased section, and nada! How can i re-download the book?

Hi Peggs,
Try this:
Open your iBooks app on your iPad
Select the Store Button at the top
Select Purchased at the bottom
You will see your AppleID on the right at the bottom, then Redeem, then Support
Click on your Apple ID, and when the AppleID window comes up with the options, Sign Out
Then Sign In again and try redownloading your book
Hope this helps!
Cheers,
GB

When I try to install QuickTime, I get the message "newer version is already installed". How can I do?

When I try to install QuickTime, I get the message "newer version of QuickTime already installed". I uninstalled QuickTime. I have also gone into the registry and deleted all references regarding QuickTime. I really don't want to have to reinstall Windows just to be able to install QuickTime. I have used QuickTime for years and want to use it again. What do you suggest I do?

Download the Windows Installer CleanUp utility from the following page (use one of the links under the "DOWNLOAD LOCATION" thingy on the Major Geeks page):
http://majorgeeks.com/download.php?det=4459
To install the utility, doubleclick the msicuu2.exe file you downloaded.
Now run the utility ("Start > All Programs > Windows Install Clean Up").
In the list of programs that appears in CleanUp, select any QuickTime entries and click "Remove", as per the following screenshot:
Quit out of CleanUp, restart the PC. Now try another QuickTime install. Does it go through properly this time?

HT1923 when I try to install ITunes, I get the message that says "runtime Error". I've tried to uninstall old Itunes but can't complete it.

When I try to reinstall Itunes, I get the message that says "runtime error". What to do?

Try the following user tip:
Troubleshooting issues with iTunes for Windows updates

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!

When i try to start firefox i get a message that says proxy server refusing conections

had problems last night macafee said something was trying to download on my computer did i want t allow it i said no then everything froze up for a few minutes when everything was closed and i try to restart firefox i got the message proxy server refusing to connect i tried toturn of and turn back on my computer but still got the same message tried to restore system but only date i was given was 7-7-2010 so that did not help don't know what to do to fix problem
== This happened ==
Every time Firefox opened
== july 7th about 6:00pm

Steps to resolve this issue:
1. Open Firefox
2. Go to '''Tools>Options>Advanced>Network>Settings'''
3. Check '''No Proxy'''

HT1926 After getting error 7, i un-installed all apple sw and installed iTunes, but when I try to open it, I get the message that the Library cnnt be read because it was created by a newer version of iTunes. What do I do?

After getting error message 7, I un-installed all apple sw and installed iTunes, but it would not open. Received the message that iTunes Library cannot be read as it was created by a newer version of iTunes. What do I do now?

Hey I finally got an older vesion of itunes to work!!! 10.7 x64 for windows 7
After uninstalling all apple products even quicktime
I had to delete everything from (program files, and program files x64, program data,)
And all downloads from apple, and I went in to search deleted other stuff from apple, and itunes
But definently not my itunes library and Playlist
Down loaded 10.7 x64 for windows 7, but checked (do not start when done)
Then I emptied my recycling bin and restarted my PC
I ran geek tech tool box same as reg cure pro, also PC Tools registry cleaner, and CC Cleaner
Then I emptied my recycling bin and restarted my PC
And wallah... It finally works, and I Love the older version anyways.
Easier to download and transfer music!!!!!

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 open firefox i get a message that says Windows has encountered a problem and will notify when there is a solution. Then you can click on the explanation and it says DEP will not allow it to open. Can you tell me how to fix this?

I was able to install and have an icon on my desktop. When i click on it it automatically pops a box up that says: Firefox has stopped working. A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available. Then it highlights an icon at the bottom to show what the problem is and it is DEP (data execution prevention. I tried a few suggestions there but it didn't work. So it said to see if there is a download version compatable with DEP

See:
* https://support.mozilla.com/en-US/kb/Firefox%20crashes%20when%20you%20open%20it

When I try to open firefox I get a message that it could not open because of a problem with chrome registration. After click close 3 or 4 times, the page that opens up is an "add-ons" , plug ins etc. How do I get rid of that?

Top of page that opens says
Add-ons
Get Add-ons, Extensions, themes, plugins, installation
Restart Firefox to complete your changes Restart firefox
HP Smart Web Printing
Norton IPS ...
Norton Toolbar...
So on
Why is this happening and how do I solve this problem? I am just about ready to switch back to Explorer.

Top of page that opens says
Add-ons
Get Add-ons, Extensions, themes, plugins, installation
Restart Firefox to complete your changes Restart firefox
HP Smart Web Printing
Norton IPS ...
Norton Toolbar...
So on
Why is this happening and how do I solve this problem? I am just about ready to switch back to Explorer.

I close out Firefox then when I try to reopen it, I get a message that it is still running. I've had so many bugs with Firefox that I'm removing it and going back to IE.

The problems I've had with Firefox are numerous. It keeps running in the background and won't reopen. I have to go to the task manager and close it manually. Now, it won't load my iGoogle homepage. I was loading fine, earlier but now won't. My other browsers work fine. There are just too many bugs here.

For more information see [[Basic Troubleshooting]], under
'''4. Restart Firefox in Safe Mode'''

I am running Windows 7. Sometimes when I try to open Firefox, I get a message that says Firefox is already running. I check task manager, no Firefox running. Have to log off then back on.

Windows 7, HP Pavilion dv3, Firefox version 4.0.1 (new 5 version freezes up often, had to use earlier version)

I rolled back to version 5 and then 4 because version 7 was slow to load and would freeze up often. The original problem started before I upgraded to version 7. How do I check to see if plug-in container.exe is listed?

When I try to activate Firefox, I get the message that it's already running. I have to log out or restart to be able to activate it. I have tried updating and reinstalling, but to no avail. Any suggestions?

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