Bug 975552 - [Australis] Preload about:customizing like we do with about:newtab to increase transition performance. r=jaws,ttaubert.
Bug 942600 - [Australis] Bookmarks toolbar items can get suddenly overflowed when dragging items into it. r=mak.
Bug 876041 - Granting access to microphone shows video icon next to address bar, r=dolske, ui-r=Boriss.
Bug 976513 - Australis - yield all the close windows in tests to avoid randomorange, rs=test-only

--HG--
extra : rebase_source : bb8c41ffea63ce3811b068edfcbd9233e1ed4e42
Bug 966692 - Reduce the default set of warnings we display in console; r=msucan
bug 978072 update social activation domain, r=felipe
Bug 975552 - Let the leak detector know about the preloaded customization tab r=bustage
Bug 963208 - Use a factory for GeckoEvents. r=kats
Bug 959742 - Close dialogs when inputs change if there are no buttons on the dialog. r=bnicholson
Bug 973348 - Always send click events to the highlighted element. r=kats
Merge m-c to fx-team.
Backout ab25dcdc319b (bug 960146) for touch event regressions
Bug 784042 - Use mozIColorAnalyzer for autocomplete search result tiles. r=mbrubeck
Bug 959108 - Update helper apps page actions URL on location change. r=wesj
bug 941322 deprecate facebook messenger features, r=felipe
Bug 978127 - Update various win8 specific australis customized ui tests to use new Services.metro.supported prop. r=gijs
Backed out changeset ebcbf7155214 (bug 784042) for metro-chrome bustage
Bug 977155 - Don't animate HomeBanner when it's not visible. r=bnicholson
Bug 977155 - (Part 2) Rename HomeBanner setEnabled to setActive. r=bnicholson
Bug 977844 - Make sure snippets response is valid JSON before caching it (or trying to use it). r=bnicholson