* {{prev|Graphite Font system}}
** Code is currently in M-C but pref'd off. Q1 remaining work to pref it on.
* {{okdone|Font cache performance improvements ({{bug|703100}})}}* {{prev|Complete Continue SVG migration to DisplayList (Performance)}}
* {{ok|Implement CSS spec for flexbox}}
* {{ok|Add image visibility API ({{bug|689623}})}}