Alternatives to User-Agent Switcher and Manager

A configurable browser extension that changes the User-Agent string the browser reports, globally or per site. The listings below can replace it for an important use case. Each note says what changes if you switch.

The original

Replacements

Listings that take over the same core job as User-Agent Switcher and Manager.

  • Chameleon

    A Firefox extension that spoofs the browser profile and user agent to make fingerprinting harder.

    Chameleon is built for Firefox and spoofs the wider browser profile as well as the user agent, aiming at fingerprinting resistance rather than developer testing.

  • ModHeader

    A browser extension for modifying HTTP request and response headers and cookies while testing.

    ModHeader edits request and response headers and cookies with URL, tab or resource filters, but does not describe changing JavaScript navigator properties or Client Hints.

Similar software

Related functionality, not a direct replacement.