Software Update: Tor Browser Bundle 4.0.5

Version 4.0.5 of the Tor Browser Bundle has been released. Tor stands for The Onion Router and is a network that can be used to surf the internet anonymously. All users’ tcp traffic is routed through different Tor routers, after which it is no longer possible for the recipient to determine who the original sender was. This information is still present within the Tor network, so that answers – of course also via the system of routers – eventually arrive at the right place. The release notes for this release can be found below.

Tor Browser 4.0.5 has been released

Tor Browser 4.0.5 is based on Firefox ESR 31.5.3, which features important security updates to firefox. Additionally, it contains updates to Tor and NoScript.

Here is the changelog since 4.0.4:

  • Update Firefox to 31.5.3esr
  • Update Tor
  • Update NoScript to

Version number 4.0.5
Release status Final
Operating systems Windows 7, Android, Linux, BSD, Windows XP, macOS, Windows Vista, Windows 8, Windows 10
Website The Tor Project
File size


License type GPL