When I try to open Firefox I get: foxfire.exe application error Instruction 0x9a92819c referenced memory at 0x9a92819c Memory could not be written

Downloaded Firefox but when trying to open I get: foxfire.exe Application error Instruction 0x9a92819c referenced memory at 0x9a92819c memory could not be written
== This happened ==
Every time Firefox opened
== User Agent ==
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; GTB6.4; .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0; .NET CLR 2.0.50727)

Hello Gayle.
Try running Firefox in [http://support.mozilla.com/en-US/kb/Safe+Mode safe mode] to disable all add-ons. It's possible that some is causing troubles. You can enable them one at a time to find the culprit.
If that doesn't work, have you tried reinstalling Firefox?

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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

When I try to open Firefox, I get an error message that begins "The procedure entry point ?CreateDrawTargetForCairoSurface@Factory...could not be located..."

When I try to open Firefox, I get an error message that reads "The procedure entry point ?CreateDrawTargetForCairoSurface@Factory@gfx@mozilla@@SA?AV?$TemporaryRef@VDrawTarget@gfx@mozilla@@@3@PAU_cairo_surface@@ABUIntSize@23@@Z could not be located in the dynamic link library gkmedias.dll.
My only option is to click okay in the Error Message Box, but Firefox will not open then.

Do a clean reinstall and delete the Firefox program folder before reinstalling a fresh copy of Firefox.
*(32 bit Windows) C:\Program Files\Mozilla Firefox\
*(64 bit Windows) C:\Program Files (x86)\Mozilla Firefox\
*http://kb.mozillazine.org/Installation_directory
Download a fresh Firefox copy and save the file to the desktop.
*Firefox 17.0.x: http://www.mozilla.org/en-US/firefox/all.html
Uninstall your current Firefox version, if possible, to cleanup the Windows registry and settings in security software.
*Do NOT remove personal data when you uninstall your current Firefox version, because all profile folders will be removed and you will also lose your personal data like bookmarks and passwords from profiles of other Firefox versions.
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.
*http://kb.mozillazine.org/Uninstalling_Firefox
Your bookmarks and other profile data are stored in the Firefox Profile Folder and won't be affected by an uninstall and (re)install, but make sure that "remove personal data" is NOT selected when you uninstall Firefox.
*http://kb.mozillazine.org/Profile_folder_-_Firefox
*http://kb.mozillazine.org/Profile_backup
*http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall
Try to disable hardware acceleration in Firefox.
*Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
*https://hacks.mozilla.org/2010/09/hardware-acceleration/

When I try to open firefox it comes up with an error message stating that Microsoft Visual C++ Runtime Library error abnormal termination

When I try to open firefox it comes up with an error message stating that Microsoft Visual C++ Runtime Library Runtime Error! Program...al Settings\Application Data\Mozilla Firefox\firefox.exe
abnormal termination

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

When i try to open my ipod nano in ituned it says "an ipod has been detected but it could not be identified properly"

what do i do when i try to open my ipod nano in itunes and it says "an ipod has been detected, but could not ne identified properly"

Hello rachel167,
I would use this:
iPod nano: Error message saying that iPod 'could not be identified ...
Ensure you use every step.
Hope this helps.
~Julian

When I try to open Firefox I get "We're sorry, Firefox had a problem and crashed. We'll try to restore your tabs and windows when it restarts.

I have been using Firefox for several years. Now, when I try to open it I get the above error message.

Hi graham12345
This looks like a problem with hardware acceleration.
Are you sure that staring in Safe Mode isn't working?
You can use one of these to start Firefox in Safe Mode:
*On Windows, hold down the Shift key while starting Firefox with a double-click on the Firefox desktop shortcut
*On Mac, hold down the Options key while starting Firefox
*Help > Restart with Add-ons Disabled
*https://support.mozilla.org/kb/Safe+Mode
Try to set the gfx.content.azure.enabled pref to false or if this didn't help disable Direct2D by setting the gfx.direct2d.disabled pref to true on the about:config page and leave hardware acceleration otherwise enabled.
*http://kb.mozillazine.org/about:config
You can consider to modify the prefs.js file and add some of these:
user_pref("gfx.content.azure.enabled", false);
user_pref("gfx.direct2d.disabled", false);
user_pref("layers.acceleration.disabled", true);
That way you still have the benefit from hardware acceleration, but may not suffer from rendering issues.
You can also try to uninstall Windows update KB2670838 if you have this update.
*http://support.microsoft.com/kb/2670838

When I try to open Firefox, I get a message saying that firefox is already currently running, although it is not running. Close and try again or restart computer. How can I fix this?

I always close Firefox when I am finished with the web. When I try to open it later, I often get a message saying that firefox is currently running, so close it first. As far as I can tell, firefox is not running. The message then says to restart your computer and try again. I restart my computer and then firefox opens.

https://support.mozilla.com/en-US/kb/Firefox%20hangs See '''hang-at-exit'''

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 screen that says Firefox is configured to use a proxy server. I don't know what that is and I have no access to Firefox.

The above says it all, I think. I try to open Firefox and I get that screen I mentioned above. I have uninstalled and program twice and re-installed it three times with the same result.

Check the connection settings.
*Tools > Options > Advanced : Network : Connection > Settings
If you do not need to use a proxy to connect to internet then select "No Proxy" if the default "Use the system proxy settings" setting doesn't work.
See "Firefox connection settings":
*https://support.mozilla.com/kb/Firefox+cannot+load+websites+but+other+programs+can

I have Windows XPand Firefox 3.6.23. I have tried to update Firefox several times. My install site indicates that it has been successful, but when I try to open Firefox I get a statement that I need to update. Help!

I really do not know what details you want. When I press on the icon to open Firefox, it opens and Google appears. I go to my bookmarks to my purchasing file. There I click on my bookmarked "Quality Paperbacks" site. I get a big colorful page with a statement that I need to update Firefox. I have followed the directions to update on several different occasions. It appears to download but the next time I try, I get the same thing.

Can you attach a screenshot or link to the instructions you are following?
You are on the 3.6 release and Firefox 7.0.1 is out. You can download and install the latest release from http://www.mozilla.org/en-US/firefox/new/ if you would like to update now. The 3.6 version will be maintained for a while longer, but you should update when you can.

When I try to open Firefox I get a message: "Update could not be installed. Make sure there is not another instance of Firefox. Restart and try again."

Started w/FF 29 something.on Win XP (Home) SP3
Verified w/Task manager and PS that there is no other instance of FF.
Occurs only in my profile, administrator and other users do not get this message.
First Resetting, did not work.
Safe mode also did not work.
Uninstalled completely, even deleted the Firefox folder from my profile and rebooted.
Downloaded new versions, installed and same issue.
Firefox now version 33, all seems up to date but I still get that message. When I open Help > About it says I am at version 33 and to restart to upgrade...
Any ideas greatly appreciated.
Have reverted to SeaMonkey for now.

Hello sprytely, go for a clean re-install, 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 the next full installer https://www.mozilla.org/en-US/firefox/all/ 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
#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.
More information about reinstalling Firefox can be found [[Troubleshoot and diagnose Firefox problems#w_5-reinstall-firefox|here]].
WARNING:Do not use a third party uninstaller as part of this process. Doing so could permanently delete your [[Profiles|Firefox profile]] data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be easily recovered unless they have been backed up to an external device! See [[Back up and restore information in Firefox profiles]]. 
Thank you.

At times when we try to open Firefox we get a message it is already running and have to restart comp . Why is this ?It happens with all users . Thank you

We have gone on our comp after a while and tried to open Firefox . When we do we get a message "Firefox is running close app or restart comp . " Now the thing is I was on it earlier and closed it with the close button . Then say checked mail , or looked at pictures on my comp . Then I would want to use the browser again and when I tried to access it I get that message . Rest assured it had been closed . This issue did not happen until I downloaded Firefox4 . We did not have this problem with the earlier versions of Firefox .

https://support.mozilla.com/en-US/kb/Firefox%20hangs See '''hang-at-exit'''

When I try to open Firefox I get a message: Mozilla Crash Reporter: firefox had a problem and crashed. Will try to restore your tabs and windows when it restarts. When I click on restore this same error box keeps appearing

I can't open Firefox and thus can't get to my.yahoo.com or any of my bookmarks.

Everything is good. Downloaded 8.0 and got fully restored - bookmarks too. Thanks for being so helpful, Swarnava.
JackDrake

I just installed 4.0b7. When I open Firefox, I get a Javascript Application error message.

I just installed 4.0b7. When I open Firefox, a Javascript Application windows opens with the following message:
"what happened:TypeError: Components.classes ['@mozilla.org/extensions/manager;1'] is undefined".
The browser does open after I click 'OK' on the error message.
How can I fix this?
I have tried uninstaling and re-installing the browser.
I am using Windows 7.

That indicates an add-on is not compatible with 4.0b7. Follow the procedure in the [[troubleshooting extensions and themes]] article to identify the culprit. If you have the Ask toolbar either disable or uninstall it, that one is known to give this error and is not compatible with 4.0b7.

When I try to open Firefox I receive this message, "Application has failed to start because ssl3.dll was not found." HELP!

I've been using Firefox for about 3 years. Today, I ran a scan of my computer Webroot Anti Virus and deleted all "risky stuff" they checked. Don't know if this is a coincidence but right after the scan I could not open Firefox. I receive the message, "Application has failed to start because ssl3.dll was not found. Reloading application may remedy this." I reloaded Firefox, the current version, clicked on open and received the same message. I've reloaded Firefox 3 more times with the same results. Now I need HELP.

See if you can make Webroot restore that file in the Firefox program folder (C:\Program Files\Mozilla Firefox\). 
If not then you need to reinstall Firefox and make sure that Webroot doesn't do that another time.
You can find the latest Firefox release here:
*Firefox 8.0.x: http://www.mozilla.com/en-US/firefox/all.html

When I try to open Firefox I get: foxfire.exe application error Instruction 0x9a92819c referenced memory at 0x9a92819c Memory could not be written

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