hi..umm..i came on the internet the other day and firefox wanted to update and stuff, so i let it, but the thing is, now, for some reason when i type in a web addy in the addy bar, umm...i dunno how to explain it >< umm...say im typing in recoveryourlife, all pages that i have book marked that have that in the title appear in a drop down menu..i dont really want that to happen because im scared someone will see...i dont have cookies on my laptop, i have Ccleaner and that gets rid of them all everytime i turn on my laptop. i dont want to erase all of my faves because some of the things there i need because i need to keep an eye on it, most things arent from ryl, but some are first aid stuff and things like that, and i need them so they are like a click away, but i dont want them to pop up in a drop down menu everytime i type something in in the addy bar

does anyone know how to stop firefox doing that? i have looked at all the tabs and stuff but i cant find anything to make it stop...
the last time i updated, this is what firefox updated to:
Mozilla/5.0 (Windows; U; Windows NT 6.0; en-GB; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3
(i just c+p that from the about box...i guess its FF 5.0?)
thanks in advance for the help
Becca x