Change the hold-shift-key text for open-web-page settings to “Press the Shift key to do the opposite.” Change the name of the default browser preference to “Browser.” Rejigger some constraints. Fix #2356.
Change the hold-shift-key text for open-web-page settings to “Press the Shift key to do the opposite.” Change the name of the default browser preference to “Browser.” Rejigger some constraints. Fix #2356.

brentsimmons/Evergreen,brentsimmons/Evergreen,brentsimmons/Evergreen,brentsimmons/Evergreen