Researchers discovered a privacy vulnerability in Firefox and Tor Browser that allows tracking users across private sessions via a stable identifier in IndexedDB. This flaw undermines Tor's anonymity by linking different browsing identities. The issue affects both regular and private browsing modes, raising significant concerns for user privacy.
Background
Tor Browser is designed to provide anonymity by isolating browsing sessions and preventing tracking. IndexedDB is a web API for client-side storage, commonly used by websites for data persistence.
- Source
- Hacker News (RSS)
- Published
- Apr 23, 2026 at 01:35 AM
- Score
- 8.0 / 10