Bug 872912 - Hacking opening transition.
Merge pull request #10032 from alivedise/bugzilla/872912_v1.0.1b

Bug 872912 - Hacking opening transition, r=timdream
Merge pull request #9984 from crdlc/bug-875718

Bug 875718 - Drag&Drop is broken with long press over x icon(cherry picked from commit 66f3098da13467b4e06fcbeec18739b4babe4166)