Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

Wannan tattunawa ta zama daɗaɗɗiya. Yi sabuwar tambaya idan ka na bukatar taimako.

Firefox error when opening application

  • 5 amsoshi
  • 20 sa na da wannan matsala
  • 3 views
  • Amsa ta ƙarshe daga AlleyKat

more options

Recently installed latest firefox 3.6.3. Had other issues going on with my computer so am unsure exactly what triggered this event while fixing other issues (checking for virus/malware, updating windows xp). Tried reinstalling but issue still present.

When opening firefox, error message below appears.

Error Message: The instruction at "0x7c884204 referenced memory at "0xffffffff". The memory could not be "read".

Weird thing is, as I have firefox on my quick launch bar, when I double click it, attempting to open the application twice, it works, opening 2 firefox windows with no error. but when firefox is closed and I attempt to open just once, error message above appears.

This happened

Every time Firefox opened

== fixing computer of viruses and malware

Recently installed latest firefox 3.6.3. Had other issues going on with my computer so am unsure exactly what triggered this event while fixing other issues (checking for virus/malware, updating windows xp). Tried reinstalling but issue still present. When opening firefox, error message below appears. Error Message: The instruction at "0x7c884204 referenced memory at "0xffffffff". The memory could not be "read". Weird thing is, as I have firefox on my quick launch bar, when I double click it, attempting to open the application twice, it works, opening 2 firefox windows with no error. but when firefox is closed and I attempt to open just once, error message above appears. == This happened == Every time Firefox opened == fixing computer of viruses and malware

Mafitar da aka zaɓa

sweet! thanks guys! did what you guys mentioned and identified it was my Java Quick Starter 1.0 extension that was causing the error. now to go fix that :9 thanks again.

Karanta wannan amsa a matsayinta 👍 0

All Replies (5)

more options

Does this also happen when you start Firefox in Diagnose Firefox issues using Troubleshoot Mode?

more options

safe mode works just fine.

more options

Try disabling all addons and see if that works - if it does, try enabling your addons one by one to find the one failing.

If not, try with some of the other options provided by the Safe Mode startup dialog - could also be a problem with a toolbar, setting, search engine or bookmark, like a damaged file.

more options

If it does work in Safe-mode then disable all your extensions and then try to find which is causing it by enabling one at a time until the problem reappears. You can use "Disable all add-ons" on the Safe mode start window. You have to close and restart Firefox after each change via "File > Exit" (on Mac: "Firefox > Quit")

See Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems

more options

Zaɓi Mafita

sweet! thanks guys! did what you guys mentioned and identified it was my Java Quick Starter 1.0 extension that was causing the error. now to go fix that :9 thanks again.