When hiding Address Bar, sideberry appears automatically

[Momen-MKadry]

Hello, I have a problem, now I'm hiding sideberry, I want to hide the address bar too, so I press the shortcut and it collapses but sideberry emerges after that, also the sidebar and sideberry can't be hidden together, if I hide one the other emerges if it was hidden

[Naezr]

Do you applied "Allow multiple styles to be active together" Userchrome Toggle setting?

[Momen-MKadry]

It wasn't on but I turned it on, restarted firefox and the issue is still here

[Naezr]

Click "Apply changes"

[Momen-MKadry]

Oh, I forgot to do that 💀, it's fixed now thanks a lot