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Firefox stopped working after Windows 10 21H2 update

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  • Last reply by Dropa

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Firefox will not run after the Windows 10 21H2 update. Firefox worked before the 21H2 update but afterwards Firefox will not run at all. After the update, when I click on the Firefox icon nothing happens. It's the only web browser on my PC that was affected by the update, all others are still working just fine. Anyone know what's going on, is there a fix for this?

Firefox will not run after the Windows 10 21H2 update. Firefox worked before the 21H2 update but afterwards Firefox will not run at all. After the update, when I click on the Firefox icon nothing happens. It's the only web browser on my PC that was affected by the update, all others are still working just fine. Anyone know what's going on, is there a fix for this?

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I would gather it's something related to Windows 21H2 update. I've had this issue where that update caused erratic sounds output and I had to force image back to previous O/S numeration to fix my Audio issues. I then block any 21H2 update by using Group Policy and Regedit so my system would be more stable including sound output. But you should contact Windows O/S support that they fix what they messed up as I read online alot of Windows 10 forced to 21H2 had issues with this update.

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Chosen Solution

I would gather it's something related to Windows 21H2 update. I've had this issue where that update caused erratic sounds output and I had to force image back to previous O/S numeration to fix my Audio issues. I then block any 21H2 update by using Group Policy and Regedit so my system would be more stable including sound output. But you should contact Windows O/S support that they fix what they messed up as I read online alot of Windows 10 forced to 21H2 had issues with this update.