Alternatives to Chameleon
A Firefox extension that spoofs the browser profile and user agent to make fingerprinting harder. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Chameleon
A Firefox extension that spoofs the browser profile and user agent to make fingerprinting harder.
Replacements
Listings that take over the same core job as Chameleon.
CanvasBlocker
Blocks or fakes the browser APIs most used for fingerprinting.
CanvasBlocker is MPL-2.0 open source and fakes the specific APIs used for fingerprinting, with per-API and per-site settings, instead of spoofing the whole browser profile.
JShelter
Wraps browser APIs to reduce JavaScript fingerprinting and tracking.
JShelter is GPL-3.0 open source, wraps fingerprinting APIs rather than spoofing the user agent, and adds protection against pages probing your local network.
User-Agent Switcher and Manager
A configurable browser extension that changes the User-Agent string the browser reports, globally or per site.
User-Agent Switcher and Manager changes the reported User-Agent and Client Hints globally or per site, but it does not hide other fingerprinting signals.
Similar software
Related functionality, not a direct replacement.
arkenfox user.js
Documented Firefox configuration template for privacy and hardening.
AmIUnique
A web page that checks whether your browser has a unique fingerprint and how identifiable you are.
BrowserLeaks
A suite of web tests that show what your browser reveals about you and your device.
