Firefox extension ipFuck (also known as ipFlood) creates erroneous check.torproject fail screen with two ip addresses
The extension, created by Paul Da Silva, spoofs ip addresses using two methods. When activated, the start page of the Tor Browser (check.torproject.org) shows two ip addresses and tells the user "Sorry. You are not using Tor." EXCEPT YOU TOTALLY ARE O_O
This seems to be because the check page uses multiple ip-get methods and one of them is folled by ipFuck? I dunno.
This is obviously not a responsibility of Tor Project, but it is interesting, and is being posted here mainly so that other users who installed the extension and who may be panicking now can find this page and stop freaking out.