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!

為了改善您的使用體驗,本網站正在進行維護,部分功能暫時無法使用。若本站的文件無法解決您的問題,想要向社群發問的話,請到 Twitter 上的 @FirefoxSupport 或 Reddit 上的 /r/firefox 發問,我們的社群成員將很快會回覆您的疑問。

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

Just of late, Firefox will not open, have tried to uninstall, but it tells me I have to shut Firefox but it is not open! same problem downloading new version

  • 1 回覆
  • 3 有這個問題
  • 2 次檢視
  • 最近回覆由 philipp

more options

Wherever I find Firefox on my computer, it will not open. i cannot get beyond the icon or the file. Clicking on them gets no result. If I try to uninstall and download again, it tells me it cannot proceed in either case until I close Firefox. But it will not close. So I am totally stuck. It worked well up to about a fortnight ago.

Wherever I find Firefox on my computer, it will not open. i cannot get beyond the icon or the file. Clicking on them gets no result. If I try to uninstall and download again, it tells me it cannot proceed in either case until I close Firefox. But it will not close. So I am totally stuck. It worked well up to about a fortnight ago.

所有回覆 (1)

more options

hello xennophon, does the following help article contain a solution for your problem?: "Firefox is already running but is not responding" error - How to fix

in some cases this error at startup might also be a symptom of malware active on the pc. please do a full scan of your system with your security software already in place and/or an alternative like the free version of malwarebytes.