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!

为提升您的使用体验,本站正在维护,部分功能暂时无法使用。如果本站文章无法解决您的问题,您想要向社区提问的话,请到 Twitter 上的 @FirefoxSupport 或 Reddit 上的 /r/firefox 提问,我们的支持社区将会很快回复您的疑问。

搜索 | 用户支持

防范以用户支持为名的诈骗。我们绝对不会要求您拨打电话或发送短信,及提供任何个人信息。请使用“举报滥用”选项报告涉及违规的行为。

详细了解

mozilla does nt open in my pc ! i try to reinstall and it says close mozilla while mozilla is closed in my pc

more options

i open my pc. itry to open mozilla and it does not open... i try to download mozilla again so i can reinstall it and it does not let me to do it coz it says close excisting window or close mozilla althoug mozilla is closed.... after that i try to unistall it to reinsall it again hoping it will solve my problem... it is doing the same thing.... when i try to install mozilla it says to me close mozilla.... please tell me what to do

i open my pc. itry to open mozilla and it does not open... i try to download mozilla again so i can reinstall it and it does not let me to do it coz it says close excisting window or close mozilla althoug mozilla is closed.... after that i try to unistall it to reinsall it again hoping it will solve my problem... it is doing the same thing.... when i try to install mozilla it says to me close mozilla.... please tell me what to do

所有回复 (3)

more options

hello xarisarkoumanis, please try to reboot your system once before you're trying to install firefox. if the same error is occurring afterwards too, please run a full scan of your system with different security tools like the free version of malwarebytes, adwcleaner, microsoft safety scanner & kaspersky security scan, since it might be a sign of malware when firefox.exe is always running...

more options

Do a clean reinstall and delete the Firefox program folder before (re)installing a fresh copy of the current Firefox release.

Download a fresh Firefox copy and save the file to the desktop.

If possible uninstall your current Firefox version to cleanup the Windows registry and settings in security software.

  • Do NOT remove personal data when you uninstall your current Firefox version, because all profile folders will be removed and you lose personal data like bookmarks and passwords from profiles of other Firefox versions.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • (32 bit Windows) "C:\Program Files\Mozilla Firefox\"
  • (64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\"

Your bookmarks and other personal data are stored in the Firefox profile folder and won't be affected by an uninstall and (re)install, but make sure that "remove personal data" is NOT selected when you uninstall Firefox.

If you keep having problems then try to boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) as a test to see if that helps.


more options

i tried all the programs you told me but the problem is still remaining !! i am suprised too, for the first time my mozilla responds this way !! it remains the same.it doesnt open and i use other browser to serfing internet....its just in mozilla i have so many pages in bookmarks and i dont like it... ithink some serious vairous is hanging out in my pc