Well, first, explain to me why Mozilla will simply "erase" all the pics that won't show, effectively rendering any attempt of checking the URL by yourself impossible. Explain to me why even when allowing popups cookies and unholly undead invasions on that particular webpage, mozilla won't let me run a flash page or install the latest macromedia plugin, why IE takes 17 mb or memory and mozilla 51, what was the big idea of using a netscape plateform which obviously does not like a large number of websites.
Explain to me why mozilla is so much better than IE ( note that I don't like IE much coz for some reason it always crashes on me. That's something that happens on a higher plan of reality I believe, coz in the same circonstances, on the same PC, IE will crash for me but not for anybody else. That's why I turned to mozilla in the first place...

)
As for thunderbird, dunno, never tried, so I won't say anything about this one, but I do intend to, coz I'm obviously not pleased with mozilla.
BTW, which one should I try: thunderbird, or firefox ( last time I checked they were separate stuff, I believe it's still the case? )?