https://www.whatismyip.com/
https://whatmyuseragent.com/
https://www.whatsmyua.info/
https://korben.info/ip/

L’extension Firefox « User-Agent Switcher » permet de modifier son user-agent pour tromper le pistage des sites web. Open-source et personnalisable, elle offre de nombreuses options pour cont…

https://add0n.com/useragent-switcher.html?version=0.5.0&type=install

User guide - Configuration
https://yewtu.be/watch?v=-aVFxvF3N_E
https://yt.cdaut.de/watch?v=ok3txwN0ywc

Updated December 19th 2021– A dynamic, downloadable list of the most common user agents. Have you ever wondered what Most Common User Agents are? This is a list of the most common user agents, dynamically generated to remain accurate and up to date.