ContainSite salmutt מאת

Every website you visit is automatically placed in its own isolated container with a unique, deterministic device identity. Sites cannot share sessions, cookies, or correlate you through browser fingerprinting.

Features:
- Automatic per-site containers — no configuration needed
- 12 spoofed fingerprint vectors:
Canvas, WebGL, Audio, Navigator, Screen, Timezone, WebRTC, Fonts, Client Rects, Plugins, Battery, Connection
- Cross-site navigation automatically switches containers
- Options page to toggle individual vectors, whitelist domains, and manage containers
- Auth-aware — login redirects stay in the originating container

Works alongside Firefox Multi-Account Containers. No external dependencies.