FWIW, I’ve been using the Orion beta on my Mac and it’s great. It’s a WebKit based browser with a built in ad blocker and tree style tabs and can run most Firefox and chrome extensions while having lower resource usage and better battery life than safari.

A nearly perfect browser for me with only a few downsides.

- Not available on windows or Linux yet

- No open tabs sync across apple devices (yet, planned)

- Doesn’t support all extensions (yet, also planned)