Auto close zoom tab by Andy McKay

Close the tab that <a rel="nofollow" href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/d7dc0877f18a74fe52173947eaf9e9f6f3fcdd8f42e91de0e3ba07e5a4e394d5/http%3A//zoom.us">zoom.us</a> creates once its redirected to the video conference. Zoom is a video conferencing service, <a rel="nofollow" href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/561779a77200489b2042f4b673765e18d90afa6220e44f9ec434b206501d4418/https%3A//zoom.us">https://zoom.us</a>