Windows 10: Windows 10 now decided to not let me use Firefox anymore as default

Windows 10 now decided to not let me use Firefox anymore as default browser, although in Settings Firefox IS indicated as the default browser, as it has been for many months now.

How can I FORCE Win10 to really restore Firefox as the default browser?

:)

 

Edge not let me use Norton as my default browser .

Thanks I did and they said Edge don't allow extensions. Thanks anyway

 

Edge not let me use Norton as my default browser .

I suppose but it's dutch to me. All I know is that on Win 7 I could set Norton as search engine and could use Norton toolbar but on win10 I can't seem to set toolbar on any of them

 

Have you checked your Default Apps setting ? (Settings->Apps->Default Apps).

 

Check the Options/Advanced/System Defaults in Firefox, as well, to over-ride. Then check in current default browser, to ensure it's disabled there. Reboot.

 

Tried System Restore 2x, continually re-setting in Firefox options many other things. Finally noticed in the default apps selection Firefox was there twice, clicked on one (as I had today done umpteen times!) .... and this time Firefox & Win10 made friends again.

Done/FIXED (so far, at least I now know it's fixable)

 

Yep. This happened to me. I noticed two Firefox app selections. I "fixed" mine by selecting a different browser, and then tried again, and only one Firefox was there allowing me to set it as default. Don't know why it created two Firefox selections to begin with.

 

More clues

The issue showed up again and was solved again and I think I know the cause: I am using Classic Shell so WinX has some things stored in several places, for ex. Documents, User Documents, etc, (I am the only Admin.). One clue: Firefox is on the Taskbar and also on Desktop ... but a different version, perhaps from Firefox update or whatever (WinX gets easily confused with so many possibilities apparently).

Since Firefox was again NOT Default only on the only similar-seeming version on Desktop (no prob w/ the version on the Taskbar) I had to try different internal (to WinX/ Classic Shell, etc.) versions of Firefox to place on Desktop, dragging from Start Menu and other places.

THAT worked on the Firefox "versions" in both the Taskbar AND Desktop even though the Default App drop-down still shows TWO Firefox choices!