We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

firefox crashes with referenced memory error

  • 3 replies
  • 7 have this problem
  • 2 views
  • Last reply by Shadow110

TopCrasg10
TopCrasg10
more options

Firefox automatically updated on my computer yesterday and has since ceased to function. On start up I get the following error: "The instruction at 0x3feb9352 referenced memory at 0x00000000. The memory could not be read. Click on OK to terminate the program. I have uninstalled firefox and reinstalled it using the download found at https://www.mozilla.org/en-US/firefox/all/. This did not work and continued to give the same error. No other programs have this issue and it did not occur until after Firefox automatically updated itself.

Firefox automatically updated on my computer yesterday and has since ceased to function. On start up I get the following error: "The instruction at 0x3feb9352 referenced memory at 0x00000000. The memory could not be read. Click on OK to terminate the program. I have uninstalled firefox and reinstalled it using the download found at https://www.mozilla.org/en-US/firefox/all/. This did not work and continued to give the same error. No other programs have this issue and it did not occur until after Firefox automatically updated itself.

All Replies (3)

FredMcD
FredMcD
more options

What's your computer system and Firefox version?

Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?

TopCrasg10
TopCrasg10 Question owner
more options

Unfortunately I get the same error message. I currently have version 56.0.1 installed on my computer which is running Windows 7. I have an older HP computer with an Inter(R) Core(TM) i5 CPU (760@2.80GHZ) It has 8 GBs of memory and a 64-bi operating system. Oddly, if I log in as my daughter Firefox works fine. Under my log in Firefox has ceased to work, Internet Explorer is iffy, and Chrome works smoothly and without a hitch. Last night I uninstalled and reinstalled Firefox, but that does not seemed to have made a difference.

Shadow110
Shadow110
more options

Must run as Admin for all :

See if this helps you out at all : https://support.microsoft.com/en-ca/help/14039/windows-7-fix-corrupted-user-profile

Plus : 1. Repair System Registry and Files

(FOR DOING Above & Below - WINDOWS All OTHER VERSIONS - Use Search To Find Command Prompt ** Enter CMD.exe to Find COMMAND PROMPT Then Right Click & RUN AS ADMIN)

To run the SFC command use the Windows key + X keyboard shortcut to open the Power User menu and select Command Prompt (Admin). Type "SFC /SCANNOW" (without quotes or copy/paste) and press Enter. For more information on using SFC, please refer to the Microsoft KB: Use the System File Checker tool to repair missing or corrupted system files

Run the Windows Deployment Image Servicing and Management (DISM) and System File Checker (SFC) tools as Administrator. The DISM and SFC tools scan the integrity of the Windows image and all protected system files replaces corrupted, damaged and incorrect versions. (FOR DOING Above & Below - WINDOWS All OTHER VERSIONS - Use Search To Find Command Prompt ** Enter CMD.exe to Find COMMAND PROMPT Then Right Click & RUN AS ADMIN)

Windows 10 To run the DISM command use the Windows key + X keyboard shortcut to open the Power User menu, then select Command Prompt (Admin). Type "DISM /Online /Cleanup-Image /RestoreHealth" (without quotes or copy/paste) and press Enter. While running DISM you may notice the process will appear to pause at 20%. After a few minutes the operation will continue.

Please let us know if this solved your issue or if need further assistance.