I found some information on anonymous browsers here a few weeks ago, but can't find it now.
I downloaded Tor, and found I'd opened a file that vanished into the system somewhere without me having a clue where it is. A search won't find it- it just stops responding.
How do I make this thing work, please? I've just installed Firefox. This is said to have a facility for anonymous browsing but I can't find it. Or is there a better anonymous browsing system, please?