Browser containers & profiles — what they isolate
Docker, Firefox Containers, and Chrome profiles separate contexts on one machine. They excel at account separation and malware containment — but rarely change your canvas/WebGL fingerprint.
Three isolation types
Browser profiles & Firefox Multi-Account Containers — separate cookies/storage; shared fingerprint.
Docker/Podman browsers — process and filesystem isolation; display often via host VNC.
Sandboxie / Firejail — exploit containment; web fingerprint usually unchanged.
Comparison
- Firefox Containers — cookies: split · fingerprint: same · skill: low
- Docker Firefox — cookies: split · fingerprint: container display · skill: medium
- Sandboxie — malware: strong · fingerprint: same · skill: medium
Verify
- Two containers: fingerprint hash should stay the same.
- Host vs Docker: separate analyses in each UI.
Test your current browser
Test your current browserFAQ
Do Firefox Containers stop fingerprinting?
No. They split storage, not canvas/WebGL.
Is Docker enough?
Often for sandboxing and network separation; pair with hardened browser for anti-fingerprinting.