Often i try open firefox but I ge a message saying it's already running to wait until it shuts down or restart my computer??

for example I've closed Firefox earlier, but when I go to re open it I get the message that it is running

This has happened to me a couple of times many months ago. I either kill the task using task manager; or I just re-boot my pc. sometimes just best to completely shut down your pc, unplug the power for a few minutes, and restart. If you're like me and leave your pc in sleep mode for days or weeks at a time, a lot build up, which may cause some programs to hand for quite a while.

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When I click to open firefox it says that "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" and I've tried to shut down and restart my computer but it keeps

when i click to open firefox it says that "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." and I've tried to shut down and restart my computer but it keeps showing the same message. I've even uninstalled Firefox and then reinstalled in the hopes that the problem would be solved but it this message is still popping up. What can I do to solve this problem?
== This happened ==
Just once or twice
== I was on facebook trying to upload pictures yesterday. ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0; InfoPath.1)

Do you have a profile lock file in your profile folder? If so, delete it and see if TB runs properly:
http://kb.mozillazine.org/Profile_in_use#Remove_the_profile_lock_file

When I try to open Firefox, a pop up says it is already running and I must close a window or restart. I can not figure out how to close the window they are asking me to.

when I try to start Firefox, a pop up says it is already running and I must close a window or restart. I can not figure out what window they want me to close
== This happened ==
Every time Firefox opened
== User Agent ==
Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; WOW64; Trident/4.0; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; MDDC; .NET CLR 3.5.30729; .NET CLR 3.0.30618)

See http://kb.mozillazine.org/Firefox_hangs and [[Firefox hangs]] (Hang at exit)
Check in the Task Manager (XP: Ctrl+Alt+Del, Vista: Shift+Ctrl+ESC, Processes tab) if there are hanging Firefox processes.
If you see any ''firefox.exe'' processes then click the End button to end those Firefox processes.
You can only start Firefox in [[Safe mode]] or launch the [[Managing profiles|Profile Manager]] is all Firefox processes are ended.
See also http://kb.mozillazine.org/Kill_application

I cannot open iphoto- the message I am getting says Shut down and restart your computer, and then open iPhoto again. If the problem persists, try rebuilding your photo library. To do this, quit iPhoto, and then reopen it while keeping the Option and Comma

i cannot open iphoto- the message I am getting says Shut down and restart your computer, and then open iPhoto again. If the problem persists, try rebuilding your photo library. To do this, quit iPhoto, and then reopen it while keeping the Option and Command-
I tries and it doesnt work!!

What version of iPhoto? Assuming 09 or later:
Option 1
Back Up and try rebuild the library: hold down the command and option (or alt) keys while launching iPhoto. Use the resulting dialogue to rebuild. Choose to Repair Database. If that doesn't help, then try again, this time using Rebuild Database.
If that fails:
Option 2
Download iPhoto Library Manager and use its rebuild function. (In early versions of Library Manager it's the File -> Rebuild command. In later versions it's under the Library menu.)
This will create an entirely new library. It will then copy (or try to) your photos and all the associated metadata and versions to this new Library, and arrange it as close as it can to what you had in the damaged Library. It does this based on information it finds in the iPhoto sharing mechanism - but that means that things not shared won't be there, so no slideshows, books or calendars, for instance - but it should get all your events, albums and keywords, faces and places back.
Because this process creates an entirely new library and leaves your old one untouched, it is non-destructive, and if you're not happy with the results you can simply return to your old one.
Regards
TD

How do I restore my iPhoto. When I open i get a window dialog "Your iphoto library is either in use by another application or has become unreadable shut down and restart your computer. If problem persists, try rebuilding your iphoto library. To do th

When I try to open iPhoto I get a window dialog that says...
Your photo library is either in use by another application or has become unreadable
Shut down and restart your computer, and then open iPhoto again. If the problem persists, try rebuilding your photo library. To do this, quit iPhoto, and then reopen it while keeping the Option and Command keys pressed. You can also try restoring your photo library from a backup.
I have tried the reopen it while keeping the Option and Command keyes pressed.
No change.
I dee nothing but a blank page,
Any help would be appreciated.
Also hace back ups of all images on cd's. dvds and jump drives.
Any advice is appreciated.

Option 1
Back Up and try rebuild the library: hold down the command and option (or alt) keys while launching iPhoto. Use the resulting dialogue to rebuild. Choose to Repair Database. If that doesn't help, then try again, this time using Rebuild Database.
If that fails:
Option 2
Download iPhoto Library Manager and use its rebuild function. (In early versions of Library Manager it's the File -> Rebuild command. In later versions it's under the Library menu.)
This will create an entirely new library. It will then copy (or try to) your photos and all the associated metadata and versions to this new Library, and arrange it as close as it can to what you had in the damaged Library. It does this based on information it finds in the iPhoto sharing mechanism - but that means that things not shared won't be there, so no slideshows, books or calendars, for instance - but it should get all your events, albums and keywords, faces and places back.
Because this process creates an entirely new library and leaves your old one untouched, it is non-destructive, and if you're not happy with the results you can simply return to your old one.
Regards
TD

My iMac screen keeps showing pixels of previously opened documents and Safari tabs and hour or two after closing them. The shadow of those opened documents are still there hours later after shutting down and restarting my computer. What is happening

My iMac screen keeps showing pixels of previously opened documents and Safari tabs and hour or two after closing them.
Even when I swipe to the dashboard the outlines are still there when I know they should not be.
The shadow of those opened documents are still there hours later after shutting down and restarting my computer.
What is happening and what shall I do? Thanks in advance.

Not much to go on in your product info, but maybe this will help: iMac (27-inch): AMD Radeon 6970M Video Card Replacement Program. If not, then it's time to visit an Apple repair station.
27" i7 iMac (Mid 2011) refurb, OS X Mavericks (10.9.4), ML & SL, G4 450 MP w/Leopard, 9.2.2

Often for no apparent reason the computer crashes and nobody available to any command (keyboard or mouse), the images disappear. I am forced to shut down and restart the computer.

often for no apparent reason the computer crashes and nobody available to any command (keyboard or mouse), the images disappear. I am forced to shut down and restart the computer.

open console in Applications>Utilities, check the system log for the date/time of the last problem for clues.

I am having a problem opening pdf files. I get an error message saying a problem has occurred with the licensing of this product. Restart your computer and re-launch your product. If this problem still occurs after restarting ... error code:213:19 Can

I am having a problem opening pdf files. I get an error message saying
a problem has occurred with the licensing of this product. Restart your computer and re-launch your product. If this problem still occurs after restarting ... error code:213:19

Hi AdobeFiles,
I'm sorry to hear that you're unable to open PDF files. Please see this Help document: Error 213:19 | Problem has occurred with the licensing of this product | Acrobat X and XI for solutions.
Let us know how it goes!
Best,
Sara

Firefox crashes then when I try to reopen it I get a message saying it is already open and must be closed. It is not open and I cannot close it and have to reboot. It is very annoying as it happens often.

Firefox will close unexpectedly then when I try to open it I get a message saying it is already open and I must close it first. I cannot find it open anywhere and then I must reboot to open Firefox again.

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

I have tried uninstalling and reinstalling Firefox several times. Every time I try to open Firefox I get an error message saying "Close Firefox"," A copy of Firefox is already open. Only one copy of Firefox can be open at a time."

I uninstall Firefox, then reinstall Firefox, try to open Firefox, and get an error message in a popup box saying,
"Close Firefox"
"A copy of Firefox is already open. Only one copy of Firefox can be open at a time."

Create a new profile as a test to check if your current profile is causing the problems.
See "Basic Troubleshooting: Make a new profile":
*https://support.mozilla.com/kb/Basic+Troubleshooting#w_8-make-a-new-profile
If that new profile works then you can transfer some files from the old profile to that new profile, but be careful not to copy corrupted files.
See:
*http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Firefox

I close Firefox session and then try to open a new browser window - get message that Firefox is still running and I need to shut down and restart. Need a solution

I close a Firefox browser and at a later time want to open a new browser window but get message "Firefox is still running and I need to shut down before I can open a new session" I do not want to shut down as this is laborious - I can go into task manager and processes and click on Firefox and end session that way but this is not the solution. Firefox seems to be running in background but I cannot open a new session window without doing on of the above.

Have a look at this post, see if it is of any help (though related to Vista, but same issue can be there with Window 7 also)
http://www.vistax64.com/browsers-mail/265937-firefox-exe-still-running.html

Firefox is closed but it wont reopen, system says it is already running

(dont know if crash catagory is correct but love for you to look at this....)
Firefox 3.6.10: I have noticed over the last few weeks that after using Firefox for a little while I close it out to do something else, etc. Sometimes it reopens just fine like it should but increasingly when I try to open it, a message window pops up & says it is already running and cant open another one until this is closed. I checked the Task Manager but it is not listed there. The only way I have found to fix this is shut my computer down & restart. Virus & firewall are current and no problems identified in my system. Any ideas on how to fix this? Thank you

ah ok well thx i will do that and i think adobe needs to fix there plugins

I can no longer open firefox. I get a message that it is already open but when I try to force quit the app it is not there.

I am running IMacs with an OS10.6x operating system. This problem has occurred on several of my machines now. I can still open firefox from alternate profiles on the same machine, but the student profile will give me the message that it is already open and can only have one instance running at a time.

Make sure that the profile that Firefox wants to use and that is specified in profiles.ini still exists. If that profile isn't found then you get that same error message.
See:
* http://kb.mozillazine.org/Recovering_a_missing_profile
* http://kb.mozillazine.org/Profile_in_use

Everytime I try to open Firefox i get an error message saying "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."

I have restarted my computer and uninstalled and re-installed firefox and it still doesnt work. i also had a trojan virus when firefox stopped working

Do you have a profile lock file in your profile folder? If so, delete it and see if TB runs properly:
http://kb.mozillazine.org/Profile_in_use#Remove_the_profile_lock_file

I try to open firefox and a window opens that says it's already running and i need to shut the other firefox down and restart my computer, how do i get firefox to work right and open?

This happens everytime i boot up and try to open firefox first thing. It has done this for some time but i never noticed because i was using safari.

There are several possible causes for this error, for details see the [[Firefox is already running but is not responding]] article.

Often i try open firefox but I ge a message saying it's already running to wait until it shuts down or restart my computer??

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