We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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.

Error message that old firefox is running when starting firefox

  • 1 amsa
  • 0 sa na da wannan matsala
  • 1 view
  • Amsa ta ƙarshe daga cor-el

more options

Starting today (Apr 30), when trying to open firefox the following message appears:

"Firefox is running, but not responding. The old Firefox process must be closed to open a new window." My options are to close firefox or cancel.

When selecting close firefox, the message will reappear with the same options. I am unable to run.

Steps I have taken: Uninstall Firefox Download latest Install

Message still appears

Starting today (Apr 30), when trying to open firefox the following message appears: "Firefox is running, but not responding. The old Firefox process must be closed to open a new window." My options are to close firefox or cancel. When selecting close firefox, the message will reappear with the same options. I am unable to run. Steps I have taken: Uninstall Firefox Download latest Install Message still appears

All Replies (1)

more options