Tor Browser has removed user-agent randomization and adopted a single, immutable fingerprint to enhance browser anonymity.
The previous practice of user-agent randomization introduced inconsistencies and vulnerabilities in Tor's anonymity protection.
Tor's new approach focuses on uniformity and relies on a single user-agent string for all users, making it difficult to identify individual users.
The decision has received mixed reactions from privacy purists, power users, and developers, but Tor is aiming to evolve its privacy measures beyond user-agent based techniques.