Firefox through Tor

[Michael Holstein]

> So the problem is that a motivated adversary can subpoena or simply
> ask DoubleClick to hand over their IP/cookie logs. If you are using
> Tor for /everything/, then what they get from DoubleClick for that
> email address is just a Tor IP, no harm no foul. However, if the user
> had set up a filter that only sends *yahoo.com through Tor, then
> DoubleClick will have their /real IP/ on file in association with
> whatever unique ID yahoo passed for that email address, even though
> yahoo's records show only the Tor IP.

Swichproxy (as well as CTRL+SHIFT+DEL) in Firefox will clear all cookies.

Anytime you switch between TOR/Direct you should close down to all but 
one blank window, clear cookies/cache one way or another, and *then* 
proceed.

/mike.