The BrowserApp object is only available to privileged code running on Firefox for Android, and is intended for use by Firefox for Android add-ons.
Summary
BrowserApp.getTabForWindow() retrieves a browser tab, given the DOM window hosted by that tab.
Syntax
var tab = window.getTabForWindow(window);
window- The content window object hosted by this tab, which can be found as the
windowproperty of theTabobject.
Returns
tab: the Tab corresponding to this content window.
Example
This function returns the ID of a tab, given the tab's window:
function tabID(window) {
let tab = window.BrowserApp.getTabForWindow(window);
return tab.id;
}