I finally upgraded to Firefox 3.6 and it has been as smooth a transition as I have come to expect from Mozilla. The one small thing that first left me confused and finally prompted me to go on a configuration trek was how Firefox now handles opening of tabs.
It is probably a pretty intuitive way of working with tabs, having related tabs (i.e. ones opened from links in a present page) open and sit right next to the present page tab, instead of appearing at the end of the tab list (waaaaay off to the right).
However, I’ve grown accustomed to it and, since I use vimperator, g$ has become second nature to me, instantly bringing me to the last tab in the list.
First order of business: Head over toabout:config, then search for browser.tabs.insertRelatedAfterCurrent and set it to false.
I absolutely love Firefox for its configurability. You win again Mozilla!