Every time I try to open Firefox I get a popup saying it is already open, and to close it or restart; but it is NOT open, and restarting doesn't help.

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Every time I try to open Firefox I get a popup saying it is already open, and to close it or restart; but it is NOT open, and restarting doesn't he

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* Continue here - https://support.mozilla.com/en-US/questions/880054

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Every time I try to start Firefox I get"A copy of FF is already open. Only one can be opened at a time" How o I get FF to work?

I can't get Firefox to start up. I've downloaded a new copy several times and keep getting the error message, "A copy of Firefox is already open. Only one copy of Firefox can be open at a time". I do not have Firefox running anywhere.

See [[Firefox is already running but is not responding]], the image shown in that article is the Windows equivalent of the error message that you are receiving, but the information relates to the Mac.

TS1702 I've purchased a book in iBook but every time I go to download it, I get a message saying you have already purchased this book go to purchases to download, please help me as I am getting beyond frustrated!!!!!

I have purchased a book on iBooks, every time I try to download it I get a message saying you have already purchased this item go to purchases and click on download. This is what I am doing every single time but cannot get the book, please help!

Your UserAgent indicates that you used Firefox 3.6.17 to post here. 
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-GB; rv:1.9.2.17) Gecko/20110420 Firefox/3.6.17
What does it say about the version of Firefox you have in '''Help > About Firefox'''?
If it says Firefox 4.0 or 4.0.1, see if this helps you: 
https://support.mozilla.com/en-US/kb/Websites+or+add-ons+incorrectly+report+incompatible+browser

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

I downloaded TunesGoWatch by Wondershare. I deleted the app. Every time I turn on my computer I get a popup saying "TunesGoWatch" can't be opened because the identity of the developer cannot be confirmed. I deleted the app, how do I stop this popup?

I downloaded TunesGoWatch by Wondershare. I deleted the app. Every time I turn on my computer I get a popup saying "TunesGoWatch can't be opened because the identity of the developer cannot be confirmed." I deleted the app, how do I stop this popup? Your help is truly appreciated

First:
 (Apple menu) > System Preferences > Users & Groups > select your account > Login Items.
Determine if that program appears in that list. If it does, select it and then remove it from Login Items with the "–" (minus) button.
Next:
Select the entire line that follows (triple-click to select it), then control-click, and from the contextual menu that appears, select Services > Open:
/Library/StartupItems/
If the program or an alias to it appears in that folder, drag it to the Trash.
Next:
When you log out or shut down your Mac, de-select the checkbox that begins with the words "Reopen windows... "

I tried to email pictures from IPhoto for the first time. I chose to use my Yahoo server but mistakenly entered the wrong password. Since then, every time I try to email pictures I get a message saying "The server didn't recognize your username/password

When trying to email pictures from IPhoto for the first time, I chose to use my Yahoo server, but I mistakenly entered the wrong password. Since then, everytime I try to email pictures I get a message saying "The server didn't recognize your username/password combination". How can I correct this so I can email pictures using my IPhoto?

iPhoto Menu -> Prefences -> Accounts. Delete and recreate your email account.
Regards
TD

Every time I try to upgrade Firefox, I get a message that I'm not eligible to do that. Mac 10.5.8

I am currently running Firefox 3.5.3 and when I try to upgrade, the message is that I'm not eligible to install the new version. I've tried Firefox 5 and Firefox 6. Would 4 work for me? And where do I find it?

If there are 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.
Download a new copy of the Firefox program and save the disk image (dmg) file to the desktop
*Firefox 15.0.1: http://www.mozilla.org/en-US/firefox/all.html
*Trash the current Firefox application (e.g. open the Applications folder in the Finder and drag the Firefox application to the Trash) to do a clean (re-)install
*Install the new version that you have downloaded
*https://support.mozilla.org/kb/Installing+Firefox+on+Mac
Your profile data is stored elsewhere in the Firefox Profile Folder, so you won't lose your bookmarks and other personal data if you uninstall and (re)install Firefox.
*http://kb.mozillazine.org/Profile_folder_-_Firefox

Every time I try to download Firefox, I get an error message tha says the file is corrupt. How do I fix it?

The file will download approximately 40% and then I get an error message that says the file is corrupt and the download window closes automatically. In addition, I have had this trouble with two separate computers using two different operating systems.

Download a fresh Firefox copy and save the file to the Desktop.
* Firefox 6.0.x: http://www.mozilla.com/en-US/firefox/all.html
* Uninstall your current Firefox version.
* Do not remove personal data when you uninstall the current version.
Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.
* It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.
Your bookmarks and other profile data are stored elsewhere in the Firefox Profile Folder and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.
* http://kb.mozillazine.org/Profile_folder_-_Firefox
* http://kb.mozillazine.org/Profile_backup

Every time I try to download firefox on my iPad it says download failed????

Gen 1 iPad. Hate safari because of the adobe flash not working. Tried to download firefox but the iPad always says download failed

Sorry, Mozilla doesn't make a version of the Firefox web browser for iOS used on the iPad and iPhone.

HT2311 Every time I try to update iTunes, I get a message saying the request timed out.

I cannot upgrade iTunes. The internet is fine - nothing else times out.

Hey tonyincary
If you having an issue with upgrade process for iTunes, try downloading directly from the following page to resolve the issue.
iTunes Download
http://www.apple.com/itunes/download/
Thanks for using Apple Support Communities.
Regards,
-Norm G.

Every time I try to download reader, I get a message saying 'Internal Error'.

Any ideas how to fix it?

Hi Shutterbug 762,
You might want to try downloading Reader 11 from : https://get.adobe.com/reader/enterprise/
Also try from a different browser and check.
BTW is the error similar to that mentioned in the KB : http://helpx.adobe.com/acrobat/kb/error-internal-error-2753-install.html
Do you have any previous versions of Adobe Reader installed?
Usually newer version of Reader removes the older version of Reader during installation.
You might want to run the Cleaner tool ( http://labs.adobe.com/downloads/acrobatcleaner.html )to try remove the existing installation and then try downloading it.
Further you might also want to check the install a new Admin account as 'internal errors' are ususally caused due to insuffcient user permissions.
Regards,
Rave

Every time I try to buy somthing I get A message saying that I have to review my agreement

When I try to buy somthing I keep getting a message that tells me to review my agreement. I have to go through all the PayPal steps over and over. My account gets linked with PayPal but I still cant order. I keep getting that Review thing again..Very frustrating.

Hi Shutterbug 762,
You might want to try downloading Reader 11 from : https://get.adobe.com/reader/enterprise/
Also try from a different browser and check.
BTW is the error similar to that mentioned in the KB : http://helpx.adobe.com/acrobat/kb/error-internal-error-2753-install.html
Do you have any previous versions of Adobe Reader installed?
Usually newer version of Reader removes the older version of Reader during installation.
You might want to run the Cleaner tool ( http://labs.adobe.com/downloads/acrobatcleaner.html )to try remove the existing installation and then try downloading it.
Further you might also want to check the install a new Admin account as 'internal errors' are ususally caused due to insuffcient user permissions.
Regards,
Rave

On a frequent basis when I go to open Firefox, I get a message saying it is already running and can't be opened. This happens on two of my XP computers. The only way I can open it is to restart the computer.

The details are in the question. I have to restart the computer to get Firefox to work a few times a week

I will try to always use "file - exit" to close it to see if that fixes the problem, but with older versions, X ing out worked OK all the time. Something may have changed with this later version.
Thank you

Every time I TRY to start firefox 18-19 I get an error message : Firefox has stopped working - close the program and check online for a solution - or - close ..

Every time I TRY to start firefox 18-19 I get an error message : "Firefox has stopped working" - "close the program and check online for a solution" - or - "close the program" this happens TWICE every time I try to start firefox. Eventually after a random number of tries firefox will start normaly. I am useing firefox 19.0.2 now bit I belive it started when I upgraded to firefox 18 but am not sure, it might have been when I upgraded to firefox 19 ... but it has been happening for a very long time and I cannot find any helpfule solutions online.
I have tried a Clean reinstall but it did not help.

Hello,
'''Try Firefox Safe Mode''' to see if the problem goes away. Safe Mode is a troubleshooting mode, which disables most add-ons.
''(If you're not using it, switch to the Default theme.)''
* You can open Firefox 4.0+ in Safe Mode by holding the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* Or open the Help menu and click on the '''Restart with Add-ons Disabled...''' menu item while Firefox is running.
''Once you get the pop-up, just select "'Start in Safe Mode"''
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, and you need to figure out which one. Please follow the [[Troubleshooting extensions and themes]] article for that.
''To exit the 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 other users who have the same problem.''
Thank you.

Every time I TRY to start firefox 18-19 I get an error message : Firefox has stopped working - close the program and check online for a solution - or - close th

Every time I TRY to start firefox 18-19 I get an error message : "Firefox has stopped working" - "close the program and check online for a solution" - or - "close the program" this happens TWICE every time I try to start firefox. Eventually after a random number of tries firefox will start normaly. I am useing firefox 19.0.2 now bit I belive it started when I upgraded to firefox 18 but am not sure, it might have been when I upgraded to firefox 19 ... but it has been happening for a very long time and I cannot find any helpfule solutions online.

Certain Firefox problems can be solved by performing a ''Clean reinstall''. This means you remove Firefox program files and then reinstall Firefox. Please follow these steps:
'''Note:''' You might want to print these steps or view them in another browser.
#Download the latest Desktop version of Firefox from http://www.mozilla.org and save the setup file to your computer.
#After the download finishes, close all Firefox windows (click Exit from the Firefox or File menu).
#Delete the Firefox installation folder, which is located in one of these locations, by default:
#*'''Windows:'''
#**C:\Program Files\Mozilla Firefox
#**C:\Program Files (x86)\Mozilla Firefox
#*'''Mac:''' Delete Firefox from the Applications folder.
#*'''Linux:''' If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see [[Installing Firefox on Linux]]. If you downloaded and installed the binary package from the [http://www.mozilla.org/firefox#desktop Firefox download page], simply remove the folder ''firefox'' in your home directory.
#Now, go ahead and reinstall Firefox:
##Double-click the downloaded installation file and go through the steps of the installation wizard.
##Once the wizard is finished, choose to directly open Firefox after clicking the Finish button.
Please report back to see if this helped you!

Every time I try to open Firefox I get a popup saying it is already open, and to close it or restart; but it is NOT open, and restarting doesn't help.

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