Error message saying a script is running and is slowing down browser...stop script or continue?

While playing games my screen freezes up and a message pops up that says there's a script running which can slow down or stop my browser. Then it asks if I want to stop script or continue. I always click stop script, but it continues to happen periodically. (This is happening in Facebook, and sometimes MySpace).

Start Firefox in [[Safe Mode]] to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
*Don't make any changes on the Safe mode start window.
*https://support.mozilla.com/kb/Safe+Mode
*https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

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I uninstalled Firefox once, reinstalled it and it ran. I had a problem so I did it again. Now it will not run and I get an error message saying that firefox is running and you can only run one at a time. I can't figure out what is running.

Because of a problem, I uninstalled Firefox once, reinstalled it and it ran. I had a problem so I uninstalled/reinstalled it again. Now it will not run. I get an error message saying that firefox is running and you can only run one at a time. I have uninstalled multiple times and can't figure out what is running. The is only one Firefox installed and it is not open. What does this mean and how do I fix it?

If you use ZoneAlarm Extreme Security then try to disable Virtualization.
*http://kb.mozillazine.org/Browser_will_not_start_up#XULRunner_error_after_an_update
See also:
*[[/questions/880050]]

I try to open Firefox. Get error message saying Firefox is already running and needs to close - another error message say Firefox can't open

Turned on laptop (rebooted) after being away from it for a few hours. Went to open my home page. Error message popped up saying Firefox is already running and must be closed. I closed it and another error message popped up saying Firefox can't open - incomplete or missing files.
I went into Processes to close Firefox. Selected 'end process' but nothing happened.
Tried to use Internet Explorer but it just gets hung up. Cannot access anything.
And, because I can't open Firefox, I can't go a refresh.
Everything was working just fine a few hours ago.
Any thoughts?

What is the computer system and Firefox on the bad computer?
Separate Issue;
Your System Details on this computer shows;
Multiple versions of your Adobe programs.
Having more than one version of a program may cause issues.
Go to '''adobe.com''' and download the full installers after removing
all of the old programs.
Start '''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in Safe Mode]''' {web Link} by holding down the '''<Shift> ''(Mac Options)'' ''' key, and then starting Firefox. Is the problem still there?
This is not a cure but will make it easier if Firefox locks up in Windows.
'''https://support.mozilla.org/questions/997866''' {web link}

HT2558 I'm trying to run Sibelius 6. it won't run and I get an error message saying I need to run as an administrator first.How do I run as administrator?

I've just installed Sibelius 6. However, It won't open and I get an error message saying I need to run as administrator first. How do I don this?

Hi Caroline,
Is this on an iPad or a Mac???

Hi, trying to watch Sky TV on laptop - installed Silverlight but error message says unable to watch Sky while in a private browser. Can I come out of this thru Firefox?

Hi, trying to watch Sky TV on laptop - installed Silverlight but error message says unable to watch Sky while in a private browser. Can I come out of this thru Firefox?

There has been a change in where Firefox searches for plugins and the plugins folder in the Firefox program folder is no longer scanned for plugins, so Firefox won't find them anymore if they are installed in the plugins folder instead of the "browser\plugins" folder that Firefox now scans.
You can set the plugins.load_appdir_plugins pref to true on the about:config page to make Firefox scan the "<install>/plugins/" directory for plugins like the WMP plugin (np-mswmp.dll).
You can alternatively move plugins from "<install directory>\plugins\" to "<install directory>\browser\plugins\" (create this folder when missing) to make Firefox find them again.
*http://www.ghacks.net/2013/05/15/why-you-may-have-lost-access-to-plugins-or-extensions-in-firefox-21/
*http://mike.kaply.com/2013/04/24/major-changes-coming-in-firefox-21/
*https://support.mozilla.org/kb/windows-media-or-other-plugins-stopped-working
*[http://www.flatplanet.tv/שידור-חי/ערוץ-1]

I am trying to update itunes software to 10.5 but I get an error message saying to try manually installing and I try that and it still doesn't work, Help!!

I am trying to update itunes software to 10.5 but I get an error message saying to try manually installing, HELP!!!

With the Error 2, let's try a standalone Apple Application Support install. It still might not install, but fingers crossed any error messages will give us a better idea of the underlying cause of the issue.
Download and save a copy of the iTunesSetup.exe (or iTunes64setup.exe) installer file to your hard drive:
http://www.apple.com/itunes/download/
Download and install the free trial version of WinRAR:
http://www.rarlab.com/
Right-click the iTunesSetup.exe (or iTunes64Setup.exe), and select "Extract to iTunesSetup" (or "Extract to iTunes64Setup"). WinRAR will expand the contents of the file into a folder called "iTunesSetup" (or "iTunes64Setup").
Go into the folder and doubleclick the AppleApplicationSupport.msi to do a standalone AAS install.
Does it install properly for you?
If instead you get an error message during the install, let us know what it says. (Precise text, please.)

Since uploading Firefox 4 I get error messages saying it can't update and I should be sure I am using the latest version. I am, so why will updates not load?

The question is in the title. I have had no updates to Firefox 4, just error messages saying they can't be loaded and I should check that I am using the latest version. I have downloaded Firefox 4 again to be sure my copy is up to date but it makes no difference. I still get the error message.

Remove the files in the updates and updates\0 folder. 
You may need to delete active-update.xml and updates.xml as well if present.
C:\Users\<user>\AppData\Local\Mozilla\Firefox\Mozilla Firefox\updates
(%LOCALAPPDATA%\Mozilla\Firefox\Mozilla Firefox)
* http://kb.mozillazine.org/Software_Update (Software Update not working properly)

I have Windows 7. When I try to print an album cover on a CD I burned, I get an error message that there is a problem and it shuts down iTunes and says will notify me once the problem is fixed

I have iTunes version 11.3.1.2 and a Windows 7 Professional aith Service Pack 1. When I try to print a CD cover from a disc I burned, I get an error message that stops the printing task and shuts down iTunes and tells me once the problem is found they will notify me. When this happened before I got sent a message from Apple that I needed to install a new verion of iTunes. I believe I now have the latest iTunes version. So why can't I print?
Is this the problem below? Does the graphics driver cause the problem?
Solve a problem with NVIDIA Graphics Driver
NVIDIA Graphics Driver has stopped working properly.
A driver update, if available, might prevent this problem from recurring.

Try a different media. I have good luck using Maxell discs.

When using Java Wizard with Firefox 3.6.23 on a Mac OS X 10.6.8 it keep getting an error message: "The Java Wizard cannot run. Please configure your browser to allow Java applets to access the filesystem." Have NO idea how to fix this problem.

When trying to upload files I received the following error: "The Java Wizard cannot run. Please configure your browser to allow Java applets to access the filesystem."

If the problem is with a site that is hosted using MOVEit DMZ by Ipswitch, please notify the site owner of the issue and ask them to apply the patch that is available on the support site to resolve the issue.
This is a better resolution than downgrading your version of Java that was updated due to security issues.

Have v. 3.6.17, cant update as a message says I have Firefox running and to close it. What now, I do close all I can.

I have v. 3.6.17, and cant update as a message comes on stating that another version of Firfox is running. I am instructed to close same. I can't find what they are talking about. Even Task Manager doen't show another firefox running.

Are you looking at the "processes" tab in the Task Manager.
'''Plug-in and tasks started by Firefox may continue after attempting
to close Firefox''' The "X" in the upper right-hand corner closes the
Window (same as Ctrl+Shift+W) but even if it is the last Firefox window,
it does not necessarily close Firefox .
The only '''proper way to exit Firefox''' is to use '''Exit''' through the
File menu, not the "X" in the upper right corner of last Firefox window.
In the Beta that would be Alt+F then X
Use the '''Windows Task Manger''' to remove all running firefox.exe in the "'''Processes'''" tab of the Windows Task Manager, then restart Firefox.
If Firefox will still not start, remove the parent.lock file from the profile which is created each time Firefox is started to prevent other Firefox tasks from running, see 
http://kb.mozillazine.org/Profile_in_use#Remove_the_profile_lock_file
'''Avoiding Problems with close/restart'''
:Use to close and restart Firefox after enabling or disabling an extension, switching to a new theme, or modifying configuration files, then you don't have to worry about delay or have to look in the Task Manager to see if Firefox is closed yet.
Use keyboard shortcut "'''Ctrl+Alt+R'''" or a file menu option.
*"'''Restartless Restart'''" extension for Firefox 4.0+ only (2 KB download ) https://addons.mozilla.org/firefox/addon/249342/

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

HT4796 When I run migration assistant on my PC, I get a message saying windows mail is running and won't let me proceed. Windows Mail is not running. I checked Task Manager's applications, services and processes and found no references to Window's Mail.

Got a new iMac 27" for Christmas (well a little after) and tried using Migration Assistant to transfer some files. I can't get past a window on the PC that pops up indicating Quit Other Programs Before you can transfer your information, the following programs must be shutdown: Windows Mail Close these programs and run Migration Assistant again. If these programs do not appear to be running, restart your computer and try again.
I've rebooted. I've searched Task Manager - Applications, Processes and Services and there are no references to WMail. I don't or haven't knowingly used Windows Mail and Outlook isn't even installed on my PC. Does anybody know how to get around this without using external drives, USB flashdrives, etc.

Lots of fun.... The superdrive in my Macbook seems to have gone off kilter since my install. Now the CD-R won't work regardless of which operating system I use. Normal CD's and DVD's are fine, but any CD-R is taken as a blank disk.
Using an external CD drive solved this problem.

How to download and install libreoffice to windows 7 with firefox as browser (error message says can't read it and see section administrator)

At libreoffice site I clicked on download and the download appeared in "My Documents" in "Downloads. When I click it to install it, it says it can't read it and to contact section administrator.

Here are two help pages to help you get started with LibreOffice:
http://www.libreoffice.org/get-help/
http://www.libreoffice.org/get-help/installation/

I keep getting error message saying application did not initialize and I can't get on the internet with mozilla at all

when I click to open the internet through Mozilla Firefox, I get this message; "The application failed to initialize properly (0xc0000006). Click on OK to terminate the application."
When I do this, I have to click on it twice before the box goes away. I still can't access the internet through Mozilla.

Well, if they are private range IPs it does not make any difference. Everybody use them.
Anyway hide any personal information.

I get an error message saying firefox is still running ut even after I reboot,same thing happens

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.

Probably a "hung" firefox.exe process.
[https://support.mozilla.com/en-US/kb/Firefox%20hangs#w_firefox-hangs-when-you-quit-it Firefox hangs when you close it]

Error message saying a script is running and is slowing down browser...stop script or continue?

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