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.

API B2G Browser API HTMLIFrameElement iframe Landing Non-standard privileged

The executeScript() method of the HTMLIFrameElement interface allows a specified script to be executed against a page loaded in the browser <iframe>.

API Browser Browser API DOM API executeScript HTMLIFrameElement Method Non-standard Reference

API B2G Browser API Firefox OS HTMLIFrameElement iframe Method Non-standard privileged Reference setNfcFocus