This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Èròjà atẹ̀lélànà yii ni a ti fi pamọ́ fọ́jọ́ pípẹ́. Jọ̀wọ́ béèrè ìbéèrè titun bí o bá nílò ìrànwọ́.

the instruction at"0x10007dba" referenced memory at "0x7c90e514" The memory could not be "written"

  • 2 àwọn èsì
  • 2 ní àwọn ìṣòro yìí
  • 2 views
  • Èsì tí ó kẹ́hìn lọ́wọ́ cdtheque

more options

When trying to open firefox receive application error message with ok to terminate and cancel to debug - window then closes & program is unusable. complete error message titled firefox.exe - Application Error

The instruction at "0x10007dba" referenced memory at "0x7c90e514". The memory could not be "written".

Click on OK to terminate the program Click on CANCEL to debug the program

After clicking OK or CANCEL the program does not start

I've tried uninstalling and reinstalling with the same problem

When trying to open firefox receive application error message with ok to terminate and cancel to debug - window then closes & program is unusable. complete error message titled firefox.exe - Application Error The instruction at "0x10007dba" referenced memory at "0x7c90e514". The memory could not be "written". Click on OK to terminate the program Click on CANCEL to debug the program After clicking OK or CANCEL the program does not start I've tried uninstalling and reinstalling with the same problem

All Replies (2)

more options

Hi ahelena-

I do not know precisely why you are getting this error. I would suggest doing a full uninstall, and then installing the latest 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.

I hope that helps!

more options

I am having this problem as well. It started after a virus infected the system. The virus has been removed. I followed the directions above and they did not solve the problem.