This is exciting. A Pixel tablet with GrapheneOS, Mull Browser, extensions, and this new UI would be absolutely fantastic!

Currently the UI on mobile Firefox is pretty bad so I use Brave primarily but on a tablet this could change things

Cool, that they’re going for a full-fledged design, akin to desktop Firefox. Presumably, this won’t have all the context menus and customization options, because they do need to re-implement all of this with the Android UI toolkit, but yeah, still looks like most of my workflow is there.