Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

Firefox is stuck and won't respond

more options

Firefox refuses to open on my Mac even though the icon on the dock has a black dot indicating it is open. I click on it and nothing happens. The firefox name does not appear in the toolbar at the top of the screen. When I go into finder and applications and click on firefox there, nothing happens. When I tried to open an older version of firefox, I get an error message telling me another version of firefox is already running. Can anyone figure this out? I would like either to get it to respond or to delete it and start over. My Mac is version 10.15.6

Firefox refuses to open on my Mac even though the icon on the dock has a black dot indicating it is open. I click on it and nothing happens. The firefox name does not appear in the toolbar at the top of the screen. When I go into finder and applications and click on firefox there, nothing happens. When I tried to open an older version of firefox, I get an error message telling me another version of firefox is already running. Can anyone figure this out? I would like either to get it to respond or to delete it and start over. My Mac is version 10.15.6

被選擇的解決方法

If you "Tab" to it and release both the Tab and Command keys, in theory, Firefox should be made the active application.

Does anything appear to happen on the screen?

If not, is there any possibility that Firefox is open on a different display? Obviously only applicable if you use (or have used) multiple displays.

從原來的回覆中察看解決方案 👍 0

所有回覆 (3)

more options

Does Firefox appear in the App Switcher? If you hold down the Command key and then press and release the Tab key, MacOS should display a bar of running programs that you can switch to by pressing Tab additional times. Is Firefox listed?

more options

Yes it is there. Now what?

more options

選擇的解決方法

If you "Tab" to it and release both the Tab and Command keys, in theory, Firefox should be made the active application.

Does anything appear to happen on the screen?

If not, is there any possibility that Firefox is open on a different display? Obviously only applicable if you use (or have used) multiple displays.