I love Chrome's tabs and have yet to find a browser that compares.

> must perform with >50 tabs open

Testing Firefox now, it has the same behavior as Safari: when I open 16 tabs it starts a horizontal scrolling list. Absolutely unusable. Chrome shrinks every tab down to Favicon size or smaller and shows you 50+ tabs at once.

Chrome got tabs right a decade ago and has yet to mess them up, as they have with most of the rest of the browser. Very hard to switch until they do.