The Mozilla add-ons team is always looks for insights in order to improve the development experience and toolset for add-ons authors. We have put together a Add-on Developer Survey that tries to capture some of that with a short series of questions. There is also ample room for free form comments and feedback which we will read intently.
So, if you are an add-on author or themer, please fill out the survey. We’ll be summarizing the results in a few weeks.
(Colophon: We have attempted to use Google Docs “Form Fill” feature to collect this data into a spreadsheet – will let you know how that goes for us.)