You can't really compare Dropbox and Mozilla. They don't have the same structure, they don't have the same goals, they don't attract the same kind of leadership or employees, they don't have the same people pulling the strings, etc etc.
Re-read my comment. I'm not saying it's better at all; just that you can't compare the two (and saying "If Houston had been at Mozilla..." is nonsensical).
The kind of people involved with Mozilla, and the kind of structure Mozilla aspires to be, makes it logical for them to dismiss their CEO in the way they did.
The kind of people involved with Dropbox, and the kind of structure Dropbox aspires to be, makes it logical for them to defend their board of directors choice and not back down.
(FWIW I have deep disgust for some of the actions taken by both Rice and Eich.)
Has Eich done anything else besides donating to Prop 8? It might just be me, but the way I'm parsing the postscript is that both Rice AND Eich have multiple actions that invoke disgust. Or is it that Eich's one action is on an equal level with any one of Rice'smultiple actions?
1. Eich's action had no complexity or other goals. Eich supported something where the SINGULAR purpose was to strip a class of people of a right they had only recently acquired. There was no complexity to it, no shades, it wasn't as part of his duties, it wasn't as part of a team, it wasn't as something he was forced into, it wasn't something he regretted.
2. Mozilla isn't Dropbox
3. CEO isn't Board Member.