Despite the version-specific UI changes, the fundamental security model remained unchanged: Tor Browser best practices - Security
Tor Browser 11.0, released in November 2021, represented a significant overhaul of the privacy-focused browser, primarily by moving to the codebase and introducing the "Proton" user interface . This version aimed to modernize the user experience while maintaining its core mission of providing anonymous, uncensored internet access. Key Features and Modernization tor-browser-11-0
: These critical stability issues were addressed in rapid follow-up releases, such as 11.0.2 , which focused on resolving the extension and tab crashing bugs identified by the community. Privacy and Security Context Privacy and Security Context : The transition to
: The transition to the Proton design refreshed the look of the browser, featuring updated typography, simplified menus, and a more modern tab design. Post-Launch Stability Issues : Version 11
: One of the most critical technical shifts in the 11.0 series was the complete removal of support for version 2 onion services. Users were required to migrate to the more secure version 3 onion addresses , which offer better encryption and authentication. Post-Launch Stability Issues
: Version 11.0 introduced updated icons to help users more easily identify their connection status and distinguish between regular websites and .onion services .
While 11.0 brought modern features, its initial rollout faced several technical hurdles reported by users on the Tor Project Forum :