Arc

Arc rethought the browser frame from scratch. Tabs live in a left sidebar, not a top strip, and they're treated as ephemeral, untouched tabs auto-archive, so the list stays short instead of accreting forever. The address bar is invoked as a floating command bar, summoned over the page, blending URL entry, search, and actions in one keyboard-first surface. Spaces partition tabs into separate contexts you switch between like rooms. The cost is a steep conceptual load: pinned versus today tabs, folders, spaces, and split view impose a mental model conventional browsers never asked of anyone, and the auto-archiving startles users who expected their tabs to persist. It's the most opinionated chrome in years, and a genuine pleasure for those who buy the model.