my trial run of firefox lasted exactly 2 minutes when i couldn't launch websites from the run menu (which i do 98% of the time), launch a browser from a desktop shortcut, or launch the program automatically when a program reaches out to the web (1% each respectively). i could only get it to go a website if i in fact punched in that address to the bar in the program, or used a bookmark.
bill tossed me a link in irc a bit ago explaining how to alter my registry to allow for a type of this functionality for mozilla, however it was more of an 'adding a bunch of destinations that mozilla will launch to' instead of a real shell integration.
i havn't found anything in the MASSIVE bug/report/featureaddition pages mozilla provides, so i'm wondering if anyone knows how to truely integrate mozilla into windows in the way that myie2 does by default (being based on internet explorer i guess it was easy for them).