“The Tor onion router, privacy project is planning its own
version of Firefox.
“Some people may call this a fork – I don’t.
“Tor as an onion router (or set of chained, private,
maybe-anonymized proxies, if you’re lucky) is implemented in
Firefox by way of the Torbutton add-on.
“According to Tor developers there have been all kinds of bugs
and challenges with the way Torbutton toggles privacy in Firefox,
which is why they’re going their own way. They have little chance