Bug 937336 - Remove where possible explicit frame switching

Remove explicit frame switching from keyboard tests
Bug 937336 - Remove where possible explicit frame switching

Change to Persona test
Bug 913326 - Set voice privacy mode at startup
Merge pull request #14639 from crh0716/913326

Bug 913326 - Set voice privacy mode at startup r=alive, jaoo
Merge pull request #14826 from bobsilverberg/kb_frames

Bug 937336 - Remove where possible explicit frame switching
Merge pull request #14827 from bobsilverberg/persona_frames

Bug 937336 - Remove where possible explicit frame switching
Bug 942762 - Update label of bookmark on homescreen when user update bookmark name in browser