Re:I think you're missing something. (Score 1)

We don't necessarily choose extensions on existing user popularity because we aim at new users and most existing users are on a more technicall level than most users. We try to only include extensions that will be usefull and easy for newcomers. For example Gmail Notifier isn't necessarily that usefull because only a small number of internet users use Gmail and those people are likely to already be using Firefox and Gmail Notifier. Of course, there is forum on the website to recommend extensions that you think are missing.