Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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
Open

couldnot load XPCOM.

Firefox Launch failure
jbr replied
nager.ramanand
nager.ramanand

resolve issue XPCOM. not load

resolve issue XPCOM. not load

All Replies (1)

jbr
jbr
  • Top 10 Contributor

This sounds like an update got interrupted — please just download the regular installer on firefox.com and run it over your current setup and it will get it up to date as necessary. Thanks!

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.