The program was launched in tandem with a redesign of Mozilla's add-ons site that gave developers their own profile pages. Many add-on makers were already running donation programs through their own sites, but wanted the option to show up in Mozilla's catalog too.
Already it appears to be working, but on a smaller scale than some developers might have hoped. For the half dozen developers that CNET News talked to, none has made enough from it to, say, quit their day job. While Mozilla would not reveal specifics on which developers are getting the most contributions, it did provide us with the total amount given: around $20,000. An organization spokesperson said that most of that came in September and October.
For more - including other ways to make money - read "Is Mozilla's contributions program working?" on CNET News.