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!

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.

runtime error will not allow firefox to start

  • 2 replies
  • 106 have this problem
  • 1 view
  • Last reply by prccgirl

prccgirl
prccgirl
more options

I have Firefox 3.6 Whenever I try to open the browser, I get an error message that says Runtime Error! Program: C:\Program Files (x86)\Mozilla Firefox\firefox.exe

This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support tema for more information.

Is there any way that you can help me with this situation?

I have Firefox 3.6 Whenever I try to open the browser, I get an error message that says Runtime Error! Program: C:\Program Files (x86)\Mozilla Firefox\firefox.exe This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support tema for more information. Is there any way that you can help me with this situation?

Chosen solution

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

See:

If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.

  • Use "Disable all add-ons" on the Safe mode start window to disable all extensions.
  • Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")
Read this answer in context 👍 4

All Replies (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Chosen Solution

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

See:

If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.

  • Use "Disable all add-ons" on the Safe mode start window to disable all extensions.
  • Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")
prccgirl
prccgirl Question owner
more options

Thanks so much for the help with this problem. It worked for me when I disabled all of my add-ons. I know that some of them will be missed, but I would rather do without some of them than lose my Firefox browser. Once again, THANK YOU SO MUCH!