Lots of comments that this provides standard browser builtin features for a fee but I see at least a few features that could be nice and I wouldn't know how to

Lots of comments that this provides standard browser builtin features for a fee but I see at least a few features that could be nice and I wouldn't know how to do so easily in standard browsers. (Attach to menubar, sync between devices, pick engine, for example) Effectively its a paid for browser which, considering Mozilla owes of recent, maybe it's not a bad idea.