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User-Agent Switcher and Manager vs Chameleon: catalog facts
User-Agent Switcher and Manager	Chameleon
Free Free to install.	Free Free to install from its public repository.
Browser extension	Browser extension
Changes both request headers and JavaScript navigator properties Supports Client Hints and navigator.userAgentData	Spoofs the user agent and wider browser profile Interface familiar to former Random Agent Spoofer users
Spoofing can break sites that rely on accurate browser detection Does not hide other fingerprinting signals	Built for Firefox Spoofed profiles can break or change how some sites behave
Browser extension	Browser extension
Closed source	Closed source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.