Mozilla Addons Blog: Nova is here: what changes for your Firefox theme

On September 29, Firefox 157 shipped Nova, the biggest refresh of the Firefox interface since Proton back in 2021. The browser frame is cleaner, the sidebar plays a bigger role, and vertical tabs are a first-class layout. Your theme continues to load, and most color and image properties work as they did before. What does change is where those... Weiterlesen