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 not opening

  • 4 回覆
  • 1 有這個問題
  • 17 次檢視
  • 最近回覆由 Naheed

more options

Every time I try to open firefox, it instantly crashes. it pops up in task manager but only for a split second (although if my computer has just started up firefox will open for maybe 10 seconds). this is getting really frustrating. No crash errors or reports. I've tried it in safe mode, reinstalling, made sure I have none of the software on my computer which prevents Firefox from opening. Any help will be appreciated :)

Every time I try to open firefox, it instantly crashes. it pops up in task manager but only for a split second (although if my computer has just started up firefox will open for maybe 10 seconds). this is getting really frustrating. No crash errors or reports. I've tried it in safe mode, reinstalling, made sure I have none of the software on my computer which prevents Firefox from opening. Any help will be appreciated :)

所有回覆 (4)

more options

What's your computer system and Firefox version?

Some problems occur when your Internet security program was set to trust the previous version of Firefox, but no longer recognizes your updated version as trusted. Now how to fix the problem: To allow Firefox to connect to the Internet again;

  • Make sure your Internet security software is up-to-date (i.e. you are running the latest version).
  • Remove Firefox from your program's list of trusted or recognized programs. For detailed instructions, see

Configure firewalls so that Firefox can access the Internet. {web link}

more options

Tried that, still no luck. I'm running windows version 20H2, Not sure how to check the firefox version but reinstalled it today so I'm guessing the latest?

more options

sam.rogers.kiwi said

I'm running windows version 20H2

The system details shows you are running Windows NT 10.0


Start your Computer in safe mode with network support. Then start Firefox. Try Secure websites. Is the problem still there?

http://encyclopedia2.thefreedictionary.com/Linux+Safe+Mode Starting Any Computer In Safe Mode; Free Online Encyclopedia


If the problem goes away with the computer in Safe Mode, the problem is with one of the other programs on the system.

As a test, disable your protection programs.

more options

Hello, Are you using the updated version of Firefox? If it is updated but doing the same behavior then I will suggest doing a clean install of the App. Moreover, please disable all the installed extensions.