Using latest next downloaded on 24th June 17, when options in brows mode set to allow cursoring through edit fields so you can hear focus and browse mode changes, this particular snap when usedwith firefox 54 and earlier only lets you out of edit with cursor left. all other directions result in no movement, though you can tab out.
Normal web site form fields seem to be unaffected.
This was tested on windows 7 64 with 32 bit Firefox and also Windows xp, both portable and installed.
Earlier snaps in Next are not affected. Master is not affected.
Automatic focus mode for focus changes
Automatic focus mode for caret movement
both checked