McCoy said

Juliannnnnnnn said

Dark mode is disabled

Just as a test : would you enable it, please ?

does`t work either

Oh, now I know why. I use a customized Windows theme. If I switch it back to the standard theme then Firefox will work normally

Juliannnnnnnn said

Oh, now I know why. I use a customized Windows theme. If I switch it back to the standard theme then Firefox will work normally

My second question in my first post should have been :

"Do you use a Firefox theme or a Windows theme ?"

Would have saved you a lot of time and effort (sorry .... )

Good for you to have figured it out - well done  !

McCoy said

Juliannnnnnnn said

Oh, now I know why. I use a customized Windows theme. If I switch it back to the standard theme then Firefox will work normally

My next question was going to be : "Do you use a Windows theme ?"

Good for you to have figured it out - well done  !

Ah, but I really like this Theme ... so I will switch to another browser.