Earlier quoted context omitted.
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.
So apparently being a war criminal is a lot better than donating $1000 to Prop 8? The world would be a better place if instead of Eich, Rice resigned.
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.)