Bug 997338 - Fixed comments and null-check in fromUTF8().
Bug 997701 - Create a new AudioContext each time the TonePlayer changes channel.
Bug 999569 [NFC] Initialization test cases for NfcManager
Bug 1000047 - Hardening the callscreen against a transition end race.
Bug 988080 - Update copy for FxA FTE post-signup screen r=arcturus
Bug 951084 - Visual refresh for today button.
Bug 1002264 - [System] Remove System.publish function r=alive
Bug 999413 - clean useless files when execute make
Bug 949457 - Make Compose into a flex layout r=julienw
Bug 1001370 - Add a new type of shared element (pages) for the build system
Bug 997053 - [Messages] Update @2.25x assets for attachment placeholders and move it to the correct place. r=julien
Merge pull request #16572 from borjasalguero/composer_flex

Bug 949457 - Make Compose into a flex layout r=julienw
bug 999511

* Do not use gecko provided title if it contains the origin of the URL of the application.

r=alive
Bug 1001453 - Clean up bootstrap mozL10n API use in Wappush. r=gsvelto
Merge pull request #18746 from stasm/1001453-wappush-once

Bug 1001453 - Clean up bootstrap mozL10n API use in Wappush. r=gsvelto
Merge pull request #18698 from nullaus/bug999511

bug 999511
Bug 995350 - [SMS] - Display Save button for attached image file name having hidden directories ".gallery/". r=julien
Merge pull request #18616 from evanxd/bug-951084

Bug 951084 - [Calendar] Today button design
Merge pull request #18614 from 6a68/bug-988080-update-fxa-fte-post-signup-copy

Bug 988080 - Update copy for FxA FTE post-signup screen
Bug 994911 - FxA COPPA message shows raw HTML r=ferjm