EASY FIX For Mozilla Firefox Not Opening In Windows 10

How to open the Mozilla Firefox web browser when it is not opening.

Issues addressed in this tutorial:
firefox not opening
firefox not opening in windows 7
firefox not opening in windows 10
firefox not opening after update
firefox not opening gmail
firefox not opening up
firefox not opening youtube
firefox not opening google
firefox will not open

This tutorial will apply for computers, laptops, desktops,and tablets running the Windows 10, Windows 8/8.1, Windows 7 operating systems.Works for all major computer manufactures (Dell, HP, Acer, Asus, Toshiba, Lenovo, Samsung).

[kfdaddy]

Thanks very much! I was pulling my hair out trying to solve the mystery on this one after the FF 73. I was ready to take the computer in for a "consultation" and decided to take one more look on YT when I came across this video. Very concise and accurate fix and still helping people several years after you posted.

[pablosegundogarcia]

Thanks! worked!!
After changing my privacy preferences through some funny menu in Windows, Firefox would not open or crash (my main browser), and less often Chrome too.

[Paul_Bunyan]

I did everything you showed and after i did the winsock command i restarted my pc but firefox still wont open

[manojvarkey]

Thank you thank you man u saved me I restored my lap and chrome was gone I couldn't use firefox and internet because of u I can now play games and do anything Thx man

[ReggieDEdmonds]

Lol I can’t watch any vid like these without checking comments 1st but thx for this tutorial xD

[Mhtsoss]

Will it reset my history or bookmarks and stuff?

[trinyoli]

thank you very much for sharing your knowledge!. I gotta say that even though i followed each step of your tutorial, it hasn't worked for me. May a newer version of windows be the reason?

[ИванАкробатов]

I had problems with roblox error 17, and this is basically it but shorter. Still useful, Thank you!

[CommonIndianyoutuber]

thankyou sir its working on windows 8 & even without restart, ,
thankyou from india

[masterphotog]

As always, great tutorial, keep up the good work.

[frylock]

After I hit "enter" after the netsh winsock reset thing, it says that can only be done if you run as administrator. How do I do that?

[Aristotelezz]

Does this solution also work for the following? Until a week ago Firefox worked perfectly in my Windows 10. Then all of a sudden, after a virus alert, I received this message: <Window id="main window". That's what I get every time I try to open a something on the internet. For the moment I use Google Chrome but I want Firefox back. But whatever I'd try, Firefox won't work.

[vinko]

The flush its succes but when i type netsh winsock reset, a several word appear

Its say

"The following helper DLL cannot be loaded: NETTRACE. DLL" and other kind of them

[Rainyday]

hi, great vid, but unfortunately this did not work for me. I'm on a Lenovo laptop with Microsoft 10, and the only browser that works is Microsoft Edge (both Google Chrome and Firefox don't open) . Anyone got any advice on this?

[MetalDerrik]

Thank you very much! this working perfectly for me

[maliciouscookies]

I need help, I can't use Firefox because Microsoft family features keep saying I need to ask an adult for permission. My Microsoft account is an adult, but I still can't use it. Could someone help me pls?

[propacollector]

Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window.

[johansucksazz]

I only got a error for the command prompt, how do I fix that?

[robcat]

I'll note that "typed in correctly" sounds exactly like "typed incorrectly"

[niharikabehera]

it says "the requested operation requires elevation (Run as administrator)." I do not get what it means?