MyIE2 vs. Firebird

Any comments as to the relative merits of MyIE2 vs. Firebird? I've been playing with the former for a couple of days now and it seems pretty much equal to Firebird in any way a mere user like myself can tell. Lots of plug-ins available. Does tabs. Fast. F11 for lots of real estate. And, the best bit... IT WORKS. I can blog in .Text. I can open ActiveX controls. I can get to MS Intranet sites. What am I missing?