This is the Mozilla Project's list of potential Google Summer of Code projects for 2009.
Potential students: you may choose from the list below, but you do not have to - feel free to submit a proposal for your own idea. However, before you do so, see the guidelines for good ideas on the Brainstorming page.
You may wish to consider How Not To Apply For Summer Of Code before making your application. Then apply here (you'll need a Google Account).
If you have questions about Summer of Code or if you are having problems connecting up with the right Mozilla developer that might be helpful in framing a proposal send mail to Gerv and/or chofmann. We will try and respond as soon as possible and get your questions directed to the right person. Please allow at least 48 hours for a reply.
You can also kick ideas around on in any of the bugs listed under the projects below or the #developers channel on irc://irc.mozilla.org .