this is certainly a YMMV, but i LOVE this toolbar modification:

https://addons.mozilla.org/en-US/firefox/addon/4072

if you are like me and visit the same sites regularly, you rely on your bookmarks toolbar to serve as your primary navigator. on my last computer i had multiple rows of buttons, but i am trying to limit myself to one row on my new(er) computer.

to save space and fit as many buttons as possible on a single row, i have abbreviations that are of little help (FT for FlyerTalk). of course i know it's FlyerTalk b/c i recognize the icon.

despite my efforts i finally threw in the towel and decided to go back to 2 (or eventually 3) rows of favorites. while looking for the addon, i found the smart bookmarks bar, and now i can easily fit 2-3 rows of buttons on 1 row. i have also expanded my minuscule titles to give a much better description (on rollover).

sam