Welcome to the Mozilla-on-Macintosh development wiki. This is intended to serve as a centralized place for planning Mozilla Mac OS X development. Please do not report bugs here (but feel free to reference bugs if they are relevant).
Mac OS X NPAPI Plugin Support
Mac:Plugins contains a roadmap for NPAPI plugin support, the Mac OS X NPAPI Drawing Models spec, and other information about NPAPI on Mac OS X.
Obj-C Exceptions in Gecko
Obj-C_Exceptions_In_Gecko contains information about the problem of handling Objective-C exceptions in Gecko.
Cocoa Widget Popup Test Cases
Cocoa:PopupTestCases Popup window code is tricky, the tests on this page should pass whenever we modify it.