Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Tìm kiếm hỗ trợ

Tránh các lừa đảo về hỗ trợ. Chúng tôi sẽ không bao giờ yêu cầu bạn gọi hoặc nhắn tin đến số điện thoại hoặc chia sẻ thông tin cá nhân. Vui lòng báo cáo hoạt động đáng ngờ bằng cách sử dụng tùy chọn "Báo cáo lạm dụng".

Tìm hiểu thêm

Firefox no longer working in Windows 10

  • 3 trả lời
  • 0 gặp vấn đề này
  • 43 lượt xem
  • Trả lời mới nhất được viết bởi zeroknight

Hello. About a month ago FF stopped working on our installation of Windows 10. Affecting 2 PCs. Not finding much new information on the internet about it.

We are not IT professionals, so our ability to troubleshoot is limited to recommendations from Mozilla. Tried creating a new profile, clearing cache, refreshing, reinstalling, etc., and other instructions found within Mozilla's support center (https://support.mozilla.org/en-US/kb/troubleshoot-and-diagnose-firefox-problems).

Any direction is appreciated. Is this a common issue?

Hello. About a month ago FF stopped working on our installation of Windows 10. Affecting 2 PCs. Not finding much new information on the internet about it. We are not IT professionals, so our ability to troubleshoot is limited to recommendations from Mozilla. Tried creating a new profile, clearing cache, refreshing, reinstalling, etc., and other instructions found within Mozilla's support center (https://support.mozilla.org/en-US/kb/troubleshoot-and-diagnose-firefox-problems). Any direction is appreciated. Is this a common issue?

Tất cả các câu trả lời (3)

What isn't working exactly? It sounds like you are able to launch Firefox at least.

Try reinstalling the Visual C++ Redistributable.

Temporarily disable any third-party antivirus or security software, this may require rebooting into Windows Safe Mode with networking enabled.

Thanks for the help. I want to better describe what is happening and what we have tried.

  • A few weeks ago FF stopped working on 2 PCs. When we clicked the icon it flashed open & then closed in less than a second.
  • We repaired & reinstalled on both PCs. Nothing changed.
  • We created new profiles on both PCs. Nothing changed.
  • When we open FF in Troubleshoot mode, it will stay open longer but still shuts in 30 seconds to a minute.
  • We removed & reinstalled what we think are the correct C++ installation packages. Nothing changed.
  • We took your recommendation to temporarily disable our AV software (McAfee). The problem is still there.

At this point when we click FF it will stay open for a brief time - usually less than a minute.

One thing that I noticed about C++ was than when viewed in Add/remove programs, there were 5 installed items listed. three of them had been updated or installed in mid November, which is about when this problem started. As of right now the only one I have listed there is "Microsoft Visual C++ 2015-2022 Redistributable (x64) - 14.38.33130".

Thanks again

Try renaming firefox.exe to something else.

Do a full system scan for malware with a different AV brand like Malwarebytes.