The weirdest thing has just occurred. I did a google search and once the page had rendered I could see double f's had been replaced with a strange script font. Even weirder, once I chose to have a look using Firebug, the strange script font appeared there also. Why is this?
I've attached a picture of what I saw.
P.S. The Search was for "wget facebook" and I'm using Firefox 3.6 on Mac OS X 10.5