Merge pull request #22006 from weigao123/bug1039957-master

Bug 1039957 - [master] Make only check box hide when FDN enabled. r=Arthur.
Merge pull request #21789 from RudyLu/keyboard/Bug1036075_2

Bug 1036075 - [L10n] Keyboard goes CAPS LOCK after typing 100 characters and selecting a suggestion.
r=djf