Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

Avatar for Username

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊，或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多

此討論串已被封存。 如果您有需要幫助，請新增一個新問題

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

johnlerrington1
johnlerrington1
more options

I've already scanned the old threads with no progress so lets try again. I have a few tabs open on ff. Its working fine, it has NOT crashed. I can copy a link from an email in thunderbird and paste it into ff and a new tab will open to that page. I can click a link in a document and the tab & page will open.

However if I just click the link in thunderbird - hey presto "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window."

It seems TB is not handling the link properly (it always used to!) However the various TB "fixes" I can find are either inscrutable, wrong or just dont work.

Has anyone fixed this?

I've already scanned the old threads with no progress so lets try again. I have a few tabs open on ff. Its working fine, it has NOT crashed. I can copy a link from an email in thunderbird and paste it into ff and a new tab will open to that page. I can click a link in a document and the tab & page will open. However if I just click the link in thunderbird - hey presto "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window." It seems TB is not handling the link properly (it always used to!) However the various TB "fixes" I can find are either inscrutable, wrong or just dont work. Has anyone fixed this?

所有回覆 (2)

FredMcD
FredMcD
more options

https://support.mozilla.org/kb/Firefox+is+already+running+but+is+not+responding

https://www.basezap.com/cant-open-firefox-because-a-copy-of-firefox-is-already-open-mac/

https://apple.stackexchange.com/questions/196771/cant-open-firefox-because-a-copy-of-firefox-is-already-open

http://kb.mozillazine.org/Firefox.exe_always_open

johnlerrington1
johnlerrington1 提出問題者
more options

Thanks for trying Fred - the problem arises under windows 10. Yes I can close firefox, (without even using task manger) and if I click the link when its closed it launches the link page in ff. So I'd already viewed the links for the problem under windows, and they were no help. Probably I should repost this as a thunderbird issue.