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!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Firefox will not open

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by kboy

more options

Firefox browser will not open. The FF icon is located in my taskbar (Windows 10). When I rest the mouse on this icon I see a very small representation of a website. When I click on the icon I see flash of some sorts on the desktop for about a nano second but the browser will not open.

I uninstalled FF and reinstalled. FF would open OK and I had no problems opening various websites. However, after I closed FF and attempted to open it up again it would not and so I am back to the original problem.

As I needed to access a website, I attempted to open Microsoft Edge and experienced the exact same problem. With the Microsoft Edge browser icon in the taskbar I can see a very small representation of a webpage but this browser will not open either.

Any assistance you can give me will be much appreciated, Con Van Dyk

Firefox browser will not open. The FF icon is located in my taskbar (Windows 10). When I rest the mouse on this icon I see a very small representation of a website. When I click on the icon I see flash of some sorts on the desktop for about a nano second but the browser will not open. I uninstalled FF and reinstalled. FF would open OK and I had no problems opening various websites. However, after I closed FF and attempted to open it up again it would not and so I am back to the original problem. As I needed to access a website, I attempted to open Microsoft Edge and experienced the exact same problem. With the Microsoft Edge browser icon in the taskbar I can see a very small representation of a webpage but this browser will not open either. Any assistance you can give me will be much appreciated, Con Van Dyk

Chosen solution

Reboot and see if you have the same issue in another windows account. You can also boot Windows to safe mode and see if you have the same issue.

https://support.microsoft.com/en-us/windows/start-your-pc-in-safe-mode-in-windows-92c27cff-db89-8644-1ce4-b3e5e56fe234

Read this answer in context 👍 1

All Replies (2)

more options

Chosen Solution

Reboot and see if you have the same issue in another windows account. You can also boot Windows to safe mode and see if you have the same issue.

https://support.microsoft.com/en-us/windows/start-your-pc-in-safe-mode-in-windows-92c27cff-db89-8644-1ce4-b3e5e56fe234

more options

Thank a lot jonzn4SUSE, for your suggestions to resolve my problem. Restarting my PC did not resolve the issue but restarting in safe mode with networking while in Windows 10 did. While in safe mode I was able to open FF and another browser. I restarted in regular mode and FF functioned fine. Thanks a million.