So basically tighter permissions and using newer APIs. As for the Chrome stuff, as a Firefox user posting in a Firefox community, it’s of little consequence to me. But I look forward to trying out this extension.
Edit: Tried it and it kinda falls over at the first hurdle. I installed it and then tried to follow links to Tiktok and Instagram only to end up on the official sites.
Also the UI is kinda unstyled. It feels like when you first learn Java.