Good idea to embrace github (https://github.com/tfrieden/timberwolf), think a lot of "minority" software scenes, like the Amiga community, could really do with embracing new platforms for distribution of both message (forums/chat) and content (i.e. code/binaries) - would make the whole experience a lot fresher both for existing core audience and newcomers.
Too bad it is not a proper diffset of the original Firefox codebase, such as a branch, patchset, and/or separate commits... whatever you want to name it. But as of currently it is an initial commit with all and a license change?
It makes me giggle to see HTML5 and ECMAScript 3.1 being bragged about contemporaneously. I know the ES versioning is fucked up because of the events that led to Harmony, but considering that HTML5 was the big tech buzzword until ES6, seeing HTML5 alongside ES3 makes it seem surprisingly old.