Mozilla should... Rated 5 out of 5 stars
For anyone out there who is partial to Opera because of the built-in mail client-- you may be persuaded to go the Mozilla route-- or at least check it out for a while by using the combo of T-bird and Thunderbrowse.
THIS is what Mozilla should consider as a new release! (modified, and built around Firefox of course-- having Tbird integrated. Get a little inspiration, and borrowed intuition from Tbird w/ Thunderbrowse, boys and girls, and rock on!! C'mon, you can do it!