Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

trying to run or reinstall I get a message saying firefox is already running

  • 1 reply
  • 1 has this problem
  • 8 views
  • Last reply by FredMcD

more options

trying to run or reinstall I get a message saying firefox is already running and must be closed then when I close the process finishes

trying to run or reinstall I get a message saying firefox is already running and must be closed then when I close the process finishes

All Replies (1)

more options