Great! Love the new canvas renderer. Anyone know when they're planning to add generational GC or other improvements to the GC? It's making some HTML5 games choppy as far as I can tell.
Incremental GC is mostly done, so it might make it to trunk soon (so maybe in FF10 - 4 months from now). Generational GC and other improvements are also in the works but will take longer.
https://wiki.mozilla.org/Platform/Features/Incremental_GC
The implementation seems to be in active progress, which means it's going to take at least a few more versions to make it to stable.