"Non-nil to include browser externs in the master externs list.
If you work on JavaScript files that are not intended for browsers,
such as Mozilla Rhino server-side JavaScript, set this to nil.
-You can always include them on a per-file basis by calling
-`js2-add-browser-externs' from a function on `js2-mode-hook'.
-
See `js2-additional-externs' for more information about externs."
:type 'boolean
:group 'js2-mode)