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!

Tìm kiếm hỗ trợ

Tránh các lừa đảo về hỗ trợ. Chúng tôi sẽ không bao giờ yêu cầu bạn gọi hoặc nhắn tin đến số điện thoại hoặc chia sẻ thông tin cá nhân. Vui lòng báo cáo hoạt động đáng ngờ bằng cách sử dụng tùy chọn "Báo cáo lạm dụng".

Learn More

why do I get this error message after I log off then try to log back on: Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system.

more options

Why do I get this error message when I try to re-log on to Firefox when I have already log off? Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system. The only way I can re-log on to Firefox is to restart my computer.

Why do I get this error message when I try to re-log on to Firefox when I have already log off? Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system. The only way I can re-log on to Firefox is to restart my computer.

Tất cả các câu trả lời (1)

more options

It sounds as though Firefox is not shutting down completely. Check the "Hang at exit" section of this article for troubleshooting suggestions: http://kb.mozillazine.org/Firefox_hangs#Hang_at_exit