Merge pull request #21140 from vingtetun/bug1030675.followup

Bug 1030675 - Handle search app crashes. Followup. r=kgrandon
Merge pull request #21122 from etiennesegonzac/bug-1028048

Bug 1028048 - Making sure the edge swipe detector forwards events to the topmost window r=21
Merge pull request #21084 from KevinGrandon/bug_1028452_smart_collection_geolocation

Bug 1028452 - [Collections] Opening a smart collection is slow
Merge pull request #21100 from steveck-chung/bug-1021513

Bug 1021513 - [Messages] Recipients list container scroll up automatically when dragging down. r=azasypkin