[jiehong]

Safari tends to do a good job at that too.

I currently have 867 tabs on Firefox desktop, and 495 in Safari mobile on my phone (I need to start cleaning safari, because weird things happen at 500 when a new tabs is opened).

Safari on desktop also keeps tabs unloaded when re-opening a window.

I just wish safari would allow me to hide the top tab bar when I open the vertical sidebar (if someone knows how to do that, let me know!).