Join the Mozilla’s Test Days event from 9–15 Jan to test the new Firefox address bar on Firefox Beta 135 and get a chance to win Mozilla swag vouchers! 🎁

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.

Cari Bantuan

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.

Pelajari Lebih Lanjut

Thunderbird is already running, but is not responding. The old Thunderbird process must be closed to open a new window.

  • 1 balas
  • 1 memiliki masalah ini
  • 2 kunjungan
  • Balasan terakhir oleh Zenos

more options

Since I was getting abovementioned error, I have uninstalled previous version of thunderbird and installed version 38. Still i am not able to start thunderbird. First error is Thunderbird is already running, but is not responding. The old Thunderbird process must be closed to open a new window. After closing receiving following error Thunderbird is already running, but is not responding. The old Thunderbird process must be closed to open a new window.

Since I was getting abovementioned error, I have uninstalled previous version of thunderbird and installed version 38. Still i am not able to start thunderbird. First error is Thunderbird is already running, but is not responding. The old Thunderbird process must be closed to open a new window. After closing receiving following error Thunderbird is already running, but is not responding. The old Thunderbird process must be closed to open a new window.

Semua Balasan (1)

more options

Have you looked for and removed a lock file?

http://kb.mozillazine.org/Profile_in_use#Remove_the_profile_lock_file