[kbart]

"I have always wanted to have add-ons vetted by someone I can trust."

That's fine, but what about those, who want to homebrew their own plug-ins, experiment with something from GitHub etc? Mozilla could make signed plug-ins a default choice, but not prevent others. A good model, imho, is implemented on Android -- your (only) default choice is Google Play, but if you know what you are doing, you can install any app from anywhere. This way users, that need a hand holding, are protected, but more tech savvy ones will not have their freedom denied.

[eklavya]

That is allowed, only the android browser is restricted, there too you can run anything on the beta version.