- Bug 1406325 - Part 3: Refactor custom elements clone a node. (c4718c47)
- Bug 1406325 - Part 4: Use mType for LookupCustomElementDefinition and also removing parts of v0. (db3b6b58)
- ported from mozilla upstream: Bug 483155 - Put content creator function pointers onto nsHtml5ElementName. r=smaug (048ed01b)
- import from UXP: Fix Build: We don't have SVG or MathML prefs yet (9c58ef5e)
- Bug 1341898 - Make nsDocument::IsWebComponentsEnabled use a cached bool pref; (d662ddd6)
- Bug 1357002 - Part 1: Cache dom.webcomponents.customelements.enabled preference; (979d2bfb)
- Bug 1357002 - Part 2: Don't call SetupCustomElement() if the custom element feature is pref-ed off; (5ad5f4e1)
- Bug 1359346 - Implement custom element state; (cb89330b)