For some reason after updating ffx to v70 theme is weirdly resetting itself or not fully launching maybe. It's only happens when starting the browser. Looks like that: https://i.imgur.com/3SrFy9C.png
To launch it normally like it was before i need to manually go to the themes, disable and reenable arc dark theme again. Is it only me?

upd: nvm, turns out in ffx 70 no need in web extension as it was in ffx 69. If you delete it and leave just a theme all will be just as before.