Well, I did my part. I just installed the latest Firefox as part of download day. My first thoughts (I haven't looked at ff3 since and early beta...) - I miss my bookmarks that all got deleted (meh.) - I miss(ed) firebug. (getfirebug.com v.1.1 v.1.2 works just fine) - I miss(ed) firecookie (http://www.softwareishard.com/blog/firecookie/firecookie-05-beta/ v0.5 seems to work fine) - Firefox no longer crashes fatally every time I close it. (seriously, every single time I closed it) - Startup and shutdown are INCREDIBLY fast compared to ff2. - I miss my themes... and mozilla.org is a little swamped right now, so I can't get a new one. However, the default theme is really not bad at all.. I just miss my old one. We'll see how well it deals with being left running... hopefully I'll never see memory usage of 1,268,300k ever again. I'll update with more as I remember things. Update: I upgraded to ff3 on my macbook. - Colorzilla needed to be upgraded ColorZilla v2. - Bookmarks transferred just fine...