Waardering 5 van 5 sterren

Super. Please, do the same for Firefox browser!

Deze beoordeling betreft een eerdere versie van de add-on (2.4.1). 

You mean like my "Classic Theme Restorer" for Firefox?
That was alive for years until Mozilla decided to stop support for UI customizing add-ons. Nothing anyone can do about. Switch to Waterfox or use CustomCSSforFx.