Bug 1003993 - FxA System app - remove refs to 'accountId', replace with 'email'. r=ferjm
Bug 1004099 - FxA Settings app - remove refs to 'accountId', replace with 'email'. r=arthurcc
Bug 1000132 - [Building Blocks] Split headers.css to demo @import
Bug 1007147 - Fit visual details to icons label
Merge pull request #18839 from 6a68/bug-1003993-fxa-systemapp-remove-accountId

Bug 1003993 - FxA System app - remove refs to 'accountId', replace with 'email'
Merge pull request #18840 from 6a68/bug-1004099-fxa-settingsapp-remove-accountId

Bug 1004099 - FxA Settings app - remove refs to 'accountId', replace with 'email'
Bug 1007845 - Fix whitespace removals from en-US locale files from bug 940512 and bug 940132
Merge pull request #18784 from rnowm/1000132

Bug 1000132 - [Building Blocks] Split headers.css to demo @import r=cyee
Merge pull request #19061 from crdlc/bug-1007147

Bug 1007147 - Fit visual details to icon's label
Merge pull request #19075 from jrburke/bug1007845-email-calendar-en-whitespace

Bug 1007845 - Fix whitespace removals from en-US locale files r=asuth,gaye
Bug 1007147 - [Home2] Follow-up, add overflow: hidden to icons to prevent x-axis panning r=me
Bug994529 - [Gallery][Wallpaper] The left upper of interface cannot be displayed for a short time when set picture as wallpaper
Bug 1004768 - [Home2] Remove will-change property as it hurts scrolling performance with too many individual layers r=me
Merge pull request #19079 from punamdahiya/Bug994529

Bug994529 - [Gallery][Wallpaper] The left upper of interface cannot be d.isplayed for a short time when set picture as wallpaper r=djf
Bug 980638 - refix fxa forgot password