@@ -89,10 +89,6 @@ For more practical information regarding Tor Browser development, please consult
The Tor Browser is based on [Mozilla's Extended Support Release (ESR) Firefox branch](https://www.mozilla.org/en-US/firefox/organizations/). We have a [series of patches](https://gitlab.torproject.org/tpo/applications/tor-browser) against this browser to enhance privacy and security. We also [change a number of Firefox preferences](https://gitlab.torproject.org/tpo/applications/tor-browser/-/blob/main/browser/app/profile/000-tor-browser.js) from their defaults.
Tor process management and configuration is accomplished through the [Tor Launcher](https://gitlab.torproject.org/tpo/applications/tor-launcher) addon, which provides the initial Tor configuration splash screen and bootstrap progress bar. Tor Launcher is also compatible with Thunderbird, Instantbird, and XULRunner.
To help protect against potential Tor Exit Node eavesdroppers, we include [HTTPS-Everywhere](https://www.eff.org/https-everywhere). To provide users with optional defense-in-depth against JavaScript and other potential exploit vectors, we also include [NoScript](https://noscript.net/). We also modify several extension preferences from their defaults.
To provide censorship circumvention in areas where the public Tor network is blocked either by IP, or by protocol fingerprint, we include several [pluggable transports](https://gitlab.torproject.org/legacy/trac/-/wikis/doc/AChildsGardenOfPluggableTransports) in the distribution. As of this writing, we include the [lyrebird](https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/lyrebird) and [Snowflake](https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake) pluggable transports in the stable Tor Browser release distribution. The [WebTunnel](https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/webtunnel) and [conjure](https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/conjure) pluggable transports are added additionally to the alpha Tor Browser release.