To be complete, if all goes well flex-wrap will be in Firefox 28 (unprefixed). It is in Nightly and Aurora.
CSS Grid implementation will start in 2014. A dev has been assigned to it, but I don't know where it stands in its work pile (quite high though). But plans can be changed, so beware...
CSS Grid implementation will start in 2014. A dev has been assigned to it, but I don't know where it stands in its work pile (quite high though). But plans can be changed, so beware...