NsAppShell:Event Window: firefox.exe- Application Error

Since downloading Ff4 when closing the program I receive this error message;
nsAppShell:Event Window: firefox.exe- Application Error
The instruction a "0x77f87f6d" referenced memory at "0x7c59c44a". The memory could not be "written".
Click OK to terminate the program.
How can I resolve this issue? I am on an older OS (2000 pro) with 2Gigs memory and P-4 processor (if this information helps).

Your System Details
Installed Plug-ins
Shockwave Flash 14.0 r0
Shockwave Flash 12.0 r0
Shockwave Flash 11.9 r900
Having more than one version of a program may cause issues.

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NsAppShell:Event Window:firefox.exe-Application Error message when shutting down Firefox, how do I get rid of this error message?

I click to exit Firefox and the above error message & below this error message it says the following:
The instruction at 0x776fe144 referenced memory at 0xfffffffff. The memory could not be read. Click on OK to terminate the program.
The only change I have made recently was to upgrade to the current Firefox version 30.0, the above message showed up after the upgrade.

Your System Details
Installed Plug-ins
Shockwave Flash 14.0 r0
Shockwave Flash 12.0 r0
Shockwave Flash 11.9 r900
Having more than one version of a program may cause issues.

I get error nsAppShell:Event Window:FirefFox.exe-Application on exit

So far this has has not been interfering with anything I do online. The message only appears after exiting. This is also just recently been happening in the last couple of days. I have also recently updated and still happens.
Just thought I would ask and see what I need to do.

Your System Details
Installed Plug-ins
Shockwave Flash 14.0 r0
Shockwave Flash 12.0 r0
Shockwave Flash 11.9 r900
Having more than one version of a program may cause issues.

HELP: "nsAppShell:EventWindow: firefox.exe - Application Error The instruction at 0x0770e1b0 referenced memory at 0x0770e1b0. The memory could not be written."

Whenever I close Firefox, I get this error message: "nsAppShell:EventWindow: firefox.exe - Application Error The instruction at 0x0770e1b0 referenced memory at 0x0770e1b0. The memory could not be written."
Help - How to get rid of this message/error?

In order to be able to find the correct solution to your problem, we require some more non-personal information from you. Please do the following:
*Click the Firefox button at the top left, then click the ''Help'' menu and select ''Troubleshooting Information'' from the submenu. If you don't have a Firefox button, click the Help menu at the top and select ''Troubleshooting Information'' from the menu.
Now, a new tab containing your troubleshooting information should open.
*At the top of the page, you should see a button that says "Copy text to clipboard". Click it.
*Now, go back to your forum post and click inside the reply box. Press Ctrl+V to paste all the information you copied into the forum post.
If you need further information about the Troubleshooting information page, please read the article [[Use the Troubleshooting Information page to help fix Firefox issues]].
Thanks in advance for your help!

What does firefox.exe-application error mean? Firefox wont even open it just says this, and then click okay to terminate the problem.

When I go to open up Firefox, it does not open no matter what I try It just pops up this box that says Firefox.exe - application error.
Then it says the Instruction at "0x798377a9" referenced memory at "0x798377a9". The memory could not be "written".
Click on OK to termintate the program
What does this mean? And why cant I use Firefox. I can still use internet explorer just fine.
== User Agent ==
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; InfoPath.1)

Do a clean reinstall and download a fresh Firefox copy from http://www.mozilla.com/firefox/all.html and save the file to the desktop.
Uninstall your current Firefox version and remove the Firefox program folder before installing that 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.
See http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall

Firefox will not start and I get firefox.exe Application Error with the code 0x00000000, I've tried reloading but always get the same error message!

Firefox will not start, I've tried opening in safe mode, no joy. I get the firefox.exe application error 0x00000000
== This happened ==
Every time Firefox opened
== Possibly after a windows update ==
== User Agent ==
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; YPC 3.2.0; .NET CLR 1.1.4322; InfoPath.1)

Do a clean reinstall and download a fresh Firefox copy from http://www.mozilla.com/firefox/all.html and save the file to the desktop.
Uninstall your current Firefox version and remove the Firefox program folder before installing that 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.
See http://kb.mozillazine.org/Standard_diagnostic_-_Firefox#Clean_reinstall

Why on close am I geting " firefox.exe -Application error - The memory could not be "written" "?

Why on close am I geting " firefox.exe -Application error "The instruction at "0x00000000" reference menory at "0x00000000". The memory could not be "written" Click OK to terminate."?
This is on Window XP
A program White Smoke was loaded into this unit about 3 month ago and a popup to buy started appearing 1 week ago. I unistalled the program and i found virus that was removed.
The unit will not allow a system restore also.

You do not need to start Firefox to disable the Java Quick Starter, you can do that via the Java Control Panel (Control Panel > Java > Advanced)
Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]

Firefox.exe +application error +the application failed to initialize properly (0x0150004) +click on OK to terminate the application.

Win XP Home SP2
Installed Firefox, but receive the following error message:
firefox.exe +application error +the application failed to initialize properly (0x0150004) +click on OK to terminate the application.
Have uninstalled and reinstalled several times, but same message. Firefox won't even open.

Usually someone has been down the track before and occasionally they post some useful details which may help others to investigate and/or eliminate factors in their particular case.
This AccessibleMarshal.dll error seems to have a long history --- posts from 2006 with early Firefox versions had issues similar to yours.
There is a link and an excerpt below which could be worth checking in your case,
particularly since it mentions the problem would occur on a clean install (no previous instance of Firefox on the system and Windows before Vista --??)
Have a look here:
https://bugzilla.mozilla.org/show_bug.cgi?id=712960
and the post to read:
'''Mark Banner (:standard8) 2011-12-22 12:55:21 PST'''
"Created attachment 583905 [details] [diff] [review]
Add the Win32 redistributable directory to the mozconfigs"
"Somehow we missed shipping the Win32 Redistributables from Visual C++. We didn't detect this as it would only show on Windows versions less than Vista, and you'd probably only see it if you had a completely clean install, and you didn't have the dlls installed elsewhere (as it appears my XP system does)."
"If you're seeing this then you want to copy the following files from a Firefox installation:
Microsoft.VC80.CRT.manifest
msvcm80.dll
msvcp80.dll
msvcr80.dll
The patch I'm attaching updates our configuration files to specify the Win32 redistribution directory, which will then cause the build system to include the files in the build."
.... ends....
The earlier 2006 instances also had the same issue in some cases:
forums.frontmotion.com/viewtopic.php?f=10&t=393
Hope this progresses the search and resolution.
Cheers

Getting Firefox.exe Application Error on closing firefox

Locking duplicate thread. Please continue here: [[/questions/1002236]]
Hi I have Firefox Browser 29.0.1 and on Windows XP - and I am the least tech savvy person ever. Every time I close The Browser / Firefox I get a pop-up screen Firefox.exe - Application Error
The instruction at "0x0301230e" referenced memory at "0x00000004", The memory could not be "read" click on OK to terminate the program. It dosen't appear to be affecting the operation of anything, but is annoying, regardless of whether I click OK or just close the box with "X" nothing happens - but I'd like to get rid of this, if possible

Hello,
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.
More information about reinstalling Firefox can be found [https://support.mozilla.org/en-US/kb/troubleshoot-and-diagnose-firefox-problems?esab=a&s=troubleshooting&r=3&as=s#w_5-reinstall-firefox here].
WARNING: Do not run Firefox's uninstaller or use a third party remover as part of this process, because that could permanently delete your Firefox data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be recovered unless they have been backed up to an external device!
Please report back to see if this helped you!
Thank you.

I keep getting "firefox.exe application error" and program shuts down

When I attempt to boot up Firefox I get the following message "firefox.exe application error" and the program shuts down. "The application 0x10008d30 referenced memory at 0x10008d30. The memory could not be "read"

Hello,
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.
More information about reinstalling Firefox can be found [https://support.mozilla.org/en-US/kb/troubleshoot-and-diagnose-firefox-problems?esab=a&s=troubleshooting&r=3&as=s#w_5-reinstall-firefox here].
WARNING: Do not run Firefox's uninstaller or use a third party remover as part of this process, because that could permanently delete your Firefox data, including but not limited to, extensions, cache, cookies, bookmarks, personal settings and saved passwords. These cannot be recovered unless they have been backed up to an external device!
Please report back to see if this helped you!
Thank you.

Firefox.exe-application error. the application failed to initialize (0xe06d7363)

The icon for Firefox 5 when pressed will show the following message firefox.exe-application error. the application failed to initialize (0xe06d7363) It does that 90% of the time then other times starts right up.

You should never respond to such unrequested pop-ups.
Doing that is the way to get malware as no decent program would use such methods to inform you about that.
Always use a close X to close such a pop-up and never click a button.
If you want to install malware then you make all buttons do that including a No or Cancel button.
Do a malware check with a few malware scan programs.
You need to use all programs because each detects different malware.
Make sure that you update each program to get the latest version of the database.
http://www.malwarebytes.org/mbam.php - Malwarebytes' Anti-Malware
http://www.superantispyware.com/ - SuperAntispyware
http://www.safer-networking.org/en/index.html - Spybot Search & Destroy
http://www.lavasoft.com/products/ad_aware_free.php - Ad-Aware Free
http://www.microsoft.com/windows/products/winfamily/defender/default.mspx - Windows Defender: Home Page
See also "Spyware on Windows": http://kb.mozillazine.org/Popups_not_blocked

When I open Firefox I get this error-firefox.exe application error the instruction at 0x02c38690 referenced memory at 0x02c38690 the memory could not be written

When I open Firefox I get the following error: firefox.exe application error - The instruction at 0x02c38690 referenced memory at 0x02c38690 - The memory could not be written - Click on OK to terminate the program.
If you click on OK it closes Firefox - You can not reopen Firefox until you reboot the computer. Then it starts all over again.
The same happens if I click the "X" instead on the error window.

Sometimes a problem with Firefox may be a result of malware installed on your computer, that you may not be aware of.
You can try these free programs to scan for malware, which work with your existing antivirus software:
* [http://www.microsoft.com/security/scanner/default.aspx Microsoft Safety Scanner]
* [http://www.malwarebytes.org/products/malwarebytes_free/ MalwareBytes' Anti-Malware]
* [http://support.kaspersky.com/faq/?qid=208283363 TDSSKiller - AntiRootkit Utility]
* [http://www.surfright.nl/en/hitmanpro/ Hitman Pro]
* [http://www.eset.com/us/online-scanner/ ESET Online Scanner]
[http://windows.microsoft.com/MSE Microsoft Security Essentials] is a good permanent antivirus for Windows 7/Vista/XP if you don't already have one.
Further information can be found in the [[Troubleshoot Firefox issues caused by malware]] article.
Did this fix your problems? Please report back to us!

DDE server window; itune.exe-application error

Can t open itune: DDe server window: itune.exe-application error. Then, instruction at 0x6d561040 memory could not be read. P.S.: the code change every time i click ok.

I do not know the answer to this, but if you are willing to to do some troubleshooting:
Which version of windows are you using?
XP vista or 7, 64 bit or 32 bit.
Do you have Quicktime? If so does Quicktime launch?
Did you change anything on your computer just before this problem started?
Please look in the Event viewer for a helpful error message.
To open the event viewer:
Control Panel>>Administrative Tools>>Event Viewer
Or type Event Viewer into the search box.
Then select Windows Logs>>Application
Open the Event viewer immediately after iTunes crashes.
The error message should be at or near the top.
Double click on it to open more information and press copy.
Paste the result into your post.
You are looking for a message starting something like this:
Problem Event Name: APPCRASH
Application Name: iTunes.exe
Application Version: 10.2.1.1
Application Timestamp: 4d756476
Fault Module Name: iTunes.dll

I get firefox.exe Application Error memory could ot be read, instruction 0x10008d37.

When I first open firefox, a window opens in the center of the screen. The title of the window is firefox.exe-Application Error there is a red circle with a white x on the left side of the box. Written in the box is: The instruction at 0x10008d37 referenced memory at 0xfffffff. The memory could not be read. then it gives two choices. Click on ok to terminate the program or Click on cancel to debug the program. Cancel and ok shuts down firefox. If you move the box out of the way, you can use firefox to surf the net.

Thanks for the advice. I am afraid I may have bigger issues than my initial problem. I have not been able to load Firefox 8. It will go through the initial steps, then stop, without completing the update. I will try again after i figure out how to get 8 loaded.

Firefox.exe application error

Hi
Can anyone please advise how to fix firefox.exe application error.
When I click on firefox icon, it gives me an error lik this - "The exception unknown software exception (0xc0000417) occured in the application at location 0x78b2ae6e". I tired all the possible ways .
1) unistalled firefox
2) removed firefox folder
3) Did a full scan with malwarebytes antimalware and fixed all the errors
4) fixed all the errors with perfect optimizer
5) Ran checkdisk utilitiy for all the drives..
6) Restarted the PC and installed latest firefox version
7) Still the same error ...... :(
Please help.

"The exception unknown software exception (0xc0000417) occured in the application at location 0x78b2ae6e"
I get this message when I try to launch Firefox. It just started randomly and I am at a loss.
I did try launching Firefox in SafeMode and have the same issue. What's going on? Why would this start? Any ideas on how to move forward and fix this?
I did not try looking for hardware acceleration issues because I did not change anything and honeslty I do not know how to check for this ... please help ... see image

NsAppShell:Event Window: firefox.exe- Application Error

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