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

I can't open Firefox because it crashes at startup even in Safe Mode. How can I fix this?

  • 2 tontu
  • 4 am na jafe-jafe bii
  • 1 view
  • i mujjee tontu mooy Ross Marsden

more options

Here is the Crash ID: bp-fb854508-a42d-4a50-98a6-a30d02130306 I updated to the latest version of Ff V19 is it? I am on WinXP with AVG (8.5.455) antivirus. Both are fully uptodate. In AVG I have disabled "Link Scanner" and "Resident Shield" in case these were interfeering with Ff.

Google Chrome is behaving the same - crash report dialog appears immediatly on launch (and on PC start up).

Here is the Crash ID: bp-fb854508-a42d-4a50-98a6-a30d02130306 I updated to the latest version of Ff V19 is it? I am on WinXP with AVG (8.5.455) antivirus. Both are fully uptodate. In AVG I have disabled "Link Scanner" and "Resident Shield" in case these were interfeering with Ff. Google Chrome is behaving the same - crash report dialog appears immediatly on launch (and on PC start up).

Saafara biñ tànn

hello, do you have any toolbars, imesh, data manager or other similar suspicious programs installed on your pc? if so please remove them from your windows control panel - a component of those programs (datamngr.dll) is causing the crashes.

Jàng tontu lii ci fi mu bokk 👍 2

All Replies (2)

more options

Saafara yiñ Tànn

hello, do you have any toolbars, imesh, data manager or other similar suspicious programs installed on your pc? if so please remove them from your windows control panel - a component of those programs (datamngr.dll) is causing the crashes.

more options

Thank you madperson for taking the time to answer my question.

I found two Toolbars; Searchqu and ALOT, and removed them both. I suspect Searchqu was the culprit because I saw "datamngr" flash by as the uninstaller was working away.

Thanks heaps, I i hope someone finds my answer useful as well.

RossM