Bug 970340 - [Download Manager]A file with a size >1GB is not displayed successfully
Bug 972188 - Don't call pair() for incoming file transfers
Bug 965346 - Part 2: Update airplane mode status whenever _enabled flag is changed. r=alive
Bug 964342: Send language setting to basket.

* Add error codes to basket client.
* Use error code for invalid email instead of looking for a message.
* Add timeout handling for call to basket.
Bug 969217 - Improvement for the function of sharing of URLs. r=alive
Bug 963445 - [UITest][API] refactor tests using Building Blocks
Bug 973490 - [TestAgent] don't run `npm install` if `npm ink` is used r=yurenju
Bug 926852 - [Messages] Read receipts feature Gaia implementation
Bug 962649 - Be nicer to the event loop during edge gestures.
Bug 971268 - Enable bookmark icon for results launched from search app
Bug 968815 - [SMS] update thread when last message is deleted, r=julienw
Merge pull request #16247 from fabi1cazenave/smsUpdateThread-bug968815

Bug 968815 - [SMS] update thread when last message is deleted, r=julienw
Bug 960215 - [B2G][Messages] Image-attachment does not fill the screen in landscape orientation
Bug 971565 - [System2] Instantiable Title

- update test
- update bootstrap.js
- add necessary mock for bootstrap_test.js
Merge pull request #15512 from huchengtw-moz/gallery/Bug_960215-gallery-open-activity-rotation

Bug 960215 - [B2G][Messages] Image-attachment does not fill the screen i..., r=djf
Merge pull request #16030 from steveck-chung/message-read-report

Bug 926852 - [Messages] Read receipts feature Gaia implementation. r=julienw , crh0716
Merge pull request #16358 from EragonJ/bug-971565

Bug 971565 - [System2] Instantiable Title
Bug 971452 - [System2] Instantiable ActivityWindowFactory
Bug 921723 - Move the progress indicator on the below of time-header.
Bug 973783 - Fix intermittent failure of test_cost_control_data_alert_mobile.py