I get an error message that says "A copy of Firefox is already open. Please close." How do I close one?

This error message occurred after I lost all of my bookmarks and history. I followed the instructions to rename the file and restart Firefox. When I did, the message appeared, and it has not gone away. I've even tried re-installing Firefox and it still won't work. I've got the latest update and I use a MacBook.
== This happened ==
Every time Firefox opened
== Friday, 7/2 ==
== User Agent ==
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_4_11; en) AppleWebKit/531.22.7 (KHTML, like Gecko) Version/4.0.5 Safari/531.22.7

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.org/kb/Basic+Troubleshooting#w_8-make-a-new-profile
There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins" in case there are still problems.
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

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I closed Firefox and tried to re-open it, but I keep getting a message that says "A copy of Firefox is already open. Only one copy of Firefox can be open at a time." Help!

My Mac laptop was working very slowly. I closed it but I can't re-open the version I had. I tried to move it to the trash and download a new version but, I keep getting the same message. How can I get rid of this copy and get back to work????

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

A message that says :"A copy of Firefox is already open. Only one copy of Firefox can be open at a time." keeps popping up when ever I try and reinstall firefox.

My Mac thinks that there is still a firefox running even though I deleted the old one. How can I get firefox to run again?
After I updated to the new version of firefox I did not like it, so I wanted the old version back. I tried deleting firefox by bringing it to my trash. Now I am stuck and I cant even get the updated version running again.

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.org/kb/Basic+Troubleshooting#w_8-make-a-new-profile
There may be extensions and plugins installed by default in a new profile, so check that in "Tools > Add-ons > Extensions & Plugins" in case there are still problems.
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

When I try to install itunes I get an error message that says "Canot access internet conection \." Can someone please tell me what's wrong? My internet connection is working.

When I try to install itunes I get an error message that says "Cannot access internet connection \." Can someone please tell what this means?
My internet connection is working.

Okay. We'll try a different utility.
(1) Download the Windows Installer CleanUp utility installer file (msicuu2.exe) from the following Major Geeks page (use one of the links under the "DOWNLOAD LOCATIONS" thingy on the Major Geeks page):
http://majorgeeks.com/download.php?det=4459
(2) Doubleclick the msicuu2.exe file and follow the prompts to install the Windows Installer CleanUp utility. (If you're on a Windows Vista or Windows 7 system and you get a Code 800A0046 error message when doubleclicking the msicuu2.exe file, try instead right-clicking on the msicuu2.exe file and selecting "Run as administrator".)
(3) In your Start menu click All Programs and then click Windows Install Clean Up. The Windows Installer CleanUp utility window appears, listing software that is currently installed on your computer.
(4) In the list of programs that appears in CleanUp, select any iTunes entries and click "Remove", as per the following screenshot:
(5) Quit out of CleanUp, restart the PC and try another iTunes install. Does it go through properly this time?

Trying to uninstall itunes 11.0.4 from my Windows 7 computer. I get an error message that say "This Installation package could not be opened. Contatc the application vendor to verify that this is a valid windows installer package. Any solutions???

Trying to uninstall itunes 11.0.4 in order to update to the most recent itunes. I get an error message that say..."This installation package could not be opened. Contact the application vender to verify that this is a valid windows installer package.

Hello JAH1961,
I recommend following the steps in the article below when getting an error message trying to install iTunes:
Trouble installing iTunes or QuickTime for Windows
http://support.apple.com/kb/HT1926
Thank you for using Apple Support Communities.
Best,
Sheila M.

When connecting my iPhone or iPod touch to my laptop to update software, the software downloads to my laptop but when it goes to install I get an error message that says network timed out. Any advice here please?

For the past 2-3 months everytime I connect my iPhone or iPod touch to my laptop to update the software through itunes I have issues. I have tried download and install option and the download only option. When the progress bar gets to 100 % downloading and switches to start to install I get an error message that says something like connection issue/timed out/network something. My internet is working so what am I doing wrong when I didn't used to have this problem?

I've been getting timed out for 2 days now, what finally worked for me was not plugging the phone into the computer and just doing the update through my wifi, worked perfectly, took less than 15 minutes

I am attempting to open Firefox and I have a dialog box pop up that says: "A copy of Firefox is already open. Only one copy of Firefox can be open at a time." How do I close this "copy"?

I had shut down my computer, and when I started it up this is the message I received when attempting to open Firefox.

Cor-el, this is the same problem you responded to, and I said the uninstall is not possible for the same reason. I will check the Profil_in_use article, but I think I already have done all it suggests, and without success. If you solve this we change your name from Cor-el to Jor-el (Superman's father, of course)

When I click on any of my movie or TV shows in Itunes I immediately get an error message that says Itunes has stopped working and closes the program. I can sync the movies and shows to my phone okay but I can't watch on Itunes. Can anyone help?

When I click on any of my movie or TV shows in Itunes I immediately get an error message that says Itunes has stopped working and closes the program. I can sync the movies and shows to my phone okay but I can't watch on Itunes. Can anyone help?

Let's try the following user tip with that one:
iTunes for Windows 10.7.0.21: "iTunes has stopped working" error messages when playing videos, video podcasts, movies and TV shows

I am trying to install itunes 10.5 but I get an error message that says click ok to try again or enter an alternate path to a folder containing the installation package iTunes.msi...I try to point iTunes to the .msi file but that is not working.

i am trying to install itunes 10.5 but I get an error message that says "click ok to try again or enter an alternate path to a folder containing the installation package iTunes.msi..." I try to point iTunes to the .msi file on my c drive but then it gives me a message says "the file location is not a valid installation packaage for the product iTuness. Try to find the installation package 'itunes.msi' in a folder from which you can install iTunes". Any help, insight, guidance would be greatly appreciated!!

"The feature you are trying to use in on a network resource that is unavailable. Enter alternate path to a folder containing the installation package itunes64.msi".
Download the Windows Installer CleanUp utility from the following page (use one of the links under the "DOWNLOAD LOCATIONS" 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 iTunes entries and click "Remove", as per the following screenshot:
Quit out of CleanUp, restart the PC and try another iTunes install. Does it go through properly this time?

I'm running snow leopard. The try to open any .mov file in Quicktime, and I get an error message that says, "The document xyz.mov could not be opened. The movie is not in a format that Quicktime player understands. I'm a recent upgrade to Snow Leopard.

I'm running snow leopard. The try to open any .mov file in Quicktime, and I get an error message that says, "The document xyz.mov could not be opened. The movie is not in a format that Quicktime player understands. I'm a recent upgrade to Snow Leopard.
Help!
Thanks, Mark

Unfortunately, the error message gives no details about what codec might be missing or what it needs.
If the file can't be opened in QT, it only means you cannot use the QT "Inspector" window to check what compression formats were used to create the file. It does not mean you can't use the Finder "Information" window to check on the compression formats or use a third party media information window (e.g., like VLC which will open many compression formats not supported natively by QT) to determine what kind of data is included in the MOV wrapper. If the file cannot be opened in any app, it is usually a good sign that the file itself is corrupted.
It's a stupid error message. Apple should do better than that.
Error trapping is quite extensive but there are still many areas which require human oversight. The message is telling you that either the container has a problem (e.g., not properly terminated, non-standard, or corrupted) or that one or more of the compression formats used is not supported by your current codec component configuration or that the data was encoded using non-standard settings or preferences not supported by QT or that the fourCC code does not match the data contained in the file or that there are timecode inconsistencies, etc., etc., etc. In short there are a near infinite number of possible problems for which it would be very difficult/nearly impossible to program error trapping depending on your sourcing of content and how you process it before it reaches the player app. Think of it like trying to play a BD disc in an DVD player.
I'll call Apple support when I get a chance.
Chances are good that they will end up sending you back here. In any case, it is often a good idea to post a sample file for examination by other QT users. At the very least, they should be able to tell you if the sample file will play on other systems which would indicate whether or not the file itself is bad and under the best of circumstances whould allow them to examing the file in detail for various common problems.

I can not dowload the new updated software for my Ipod touch 4G. When i do I get an error message that says Network connection has timed out. I have done the trouble shooting steps. Downloaded the latest version of Itunes, and checked network connection

I can not dowload the new updated software for my Ipod touch 4G. When i do I get an error message that says Network connection has timed out. I have done the trouble shooting steps. Downloaded the latest version of Itunes, and checked network connection

Disabling the computer's antivirus and firewall during the download and update usually resolves the timeout error.

After installing the latest version of ITunes I get an error message that says this application has failed to start because MSVCR80.dll was not found. how do I get Itunes to start working again?

After installing the latest version of ITunes I get an error message that says this application has failed to start because MSVCR80.dll was not found. how do I get Itunes to start working again?

See... Unable to install or open > http://support.apple.com/kb/TS5376
Also See this User Tip by turingtest2
https://discussions.apple.com/docs/DOC-6562

For the first time, I'm trying to use adobe premiere elements10 that came with my pc Windows 8. I created a single project, saved it but cannot open it. My pc shows the file I created but I get an error message that says this type file is not supported or

For the first time, I'm trying to use adobe premiere elements 10 that came with my pc Windows 8. I created a single project, saved it but cannot open it. My pc shows the file I created but I get an error message that says this type file is not supported or the codex is not installed. As a test, I created another very small project and get the same error message, when I try to open it. Pls give me a simple answer, a refund or a phone

mike frischenmeyer
What computer operating system is your Premiere Elements 10 running on? And, what video card/graphics card does that computer use?
Is this the first time you are using Premiere Elements 10 or have you worked with it before successfully? There is no easy solution until we
know the details and troubleshoot to determined what caused the problem.
1. Can you open a new project?
2. After you saved/closed the problem project, did you move, delete, or rename any of the files/folder that were related to the source media
for that project?
3. Please review the Adobe document on troubleshooting damaged projects.
Troubleshoot damaged projects | Adobe Premiere Elements
4. What are the steps that you are using to reopen this saved closed project.
a. File Menu/Open Project/Name of Project
b. Other
Please review and consider and then we can decide what next based on your further details and results..
Thank you.
ATR

I recently reset my computer and copy my music from an external hard drive to my itunes library. When I click on a song to play i get an error message that says " the song could not be used because the original file could not be found". need help

I recently reset my computer and copy my music from an external hard drive to my itunes library. When I click on a song to play i get an error message that says " the song could not be used because the original file could not be found". But when I have my external hard drive plug in the song will play with no problem. What do I need to do to play my music without having the external harddrive plug in ???????? Please help

Because the location for each song in your library is on your hard drive. If the hard drive isn't there, how can iTunes play it?
You'll have to move/copy the music from your hard drive to your computer's hard drive.
Basically, EASIEST way to do all this, if you don't care about your play counts, etc...
-Delete EVERYTHING from iTunes, so that your library is now empty.
-Go to "Advanced" inside of the "Preferences" window, found in the "Edit" drop-down. You can also access Preferences by pressing Ctrl+, (Press Ctrl and the comma key)
-Change your iTunes Media Folder Location to something simple, but on your computer. I use C:/iTunes. Make sure "Keep iTunes Media Folder Organized" and "Copy files to...." are both checked. You can close Preferences now.
-Now, drag and drop your music from your hard drive into your iTunes library. iTunes will automatically add the music to your library, as you would expect, and also creates a copy of each file to place into that iTunes Media Folder you just created.
Shouldn't have any more problems...

I keep getting an error message that says "the ipod cannot not be synced""an unknown error occured (13019).

I keep getting an error message that says "the ipod cannot not be synced""an unknown error occured (13019). I am trying to put albums on to my ipod by dragging and dropping. I have it set to manually manage music and videos. The albums appear in the music section under Devices, but they don't appear on my actual ipod.
I have never had any problems doing this before, only in the last few days.

I am having the exact same issue as you are with my iPod nano. This started happening the same day after I updated the iPod software, so I wonder if it is a bug within the software that Apple needs to resolve. I dragged 3 playlists of new music from my iTunes over to my iPod and sometime while it was trying to add those songs, the error 13019 popped up. Another note, which may not be related at all, was that iTunes told me at some point during this process (I believe before the error notification, but I'm not sure and that may be helpful to know) that I did not have enough room on the iPod to copy all of the songs, but it would copy as many as it could. What is curious, like in your situation, is now all the songs it supposedly copied appear to be on the iPod under the Device->iPod->Music label in iTunes when it is plugged into my computer, the playlists in question are also showing up there, and it does indeed say my memory is full under the iPod's general tab in iTunes. However, when going through my actual iPod when it is not plugged in, none of those songs or playlists are anywhere to be found.
Anyways, all the established solutions to the 13019 error do not apply to this situation, as my iPod has always been set to manually managed so "unchecking" the Sync Music option under the Music tab of the iPod and rechecking it will not work because it was never checked in the first place. And voice memos are obviously not applicable since we are not talking about an iPhone failing to sync music.
Unless anyone can provide a new solution here, I may just have to take my computer and iPod up to the genius bar. Any suggestions would be appreciated.

I get an error message that says "A copy of Firefox is already open. Please close." How do I close one?

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