Chrome, Safari, Firefox, Edge, Brave and Arc feature launches and removals, extension platform changes that break ad blockers and privacy tools, uBlock Origin, AdGuard, Privacy Badger and password extension changes and removals, extension store malware and takeover incidents, cookie, tracking and fingerprinting protection changes, AI features and data settings with opt-out steps, browser end-of-support for older systems, default search and homepage deals and outages, with the browser or extension first and what a user should switch or change.