How to sleep in a firefox extension without using setTimeout?

Question

I am trying to open a pop-up window, wait X seconds and then close the popup window.

(The use case is sending a notification to a webapp - but we can't just do a GET request as it needs to be in the same session so we can use the login session)

I can't use setTimeout as we can't use it in add-ons/extensions

How can I get similar functionality without resorting to chewing up CPU cycles, which obviously causes a noticeable lag?

Answer 1

You can use the timers module provided by the SDK instead of nsITimer for the same kind of setTimeout/setInterval functionality provided in browsers

let { setTimeout } = require('sdk/timers');

function openPopup () {}

setTimeout(openPopup, 3000);