This page lists APIs that only run in Gecko Chrome code (and sometimes in other privileged circumstances.)

Note: Most of the APIs exposed to the Web in general are also usable in Chrome code: see Web APIs for a list of these.

Browser API
The HTML Browser API is an extension of the HTML <iframe> element that allows web apps to implement browsers or browser-like applications. It currently works in (privileged) chrome code on Firefox desktop (version 47 and above) and privileged and certified apps on B2G/Firefox OS.

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 Contributors to this page: chrisdavidmills
 Last updated by: chrisdavidmills,