LHC Beam Mode Monitor от kadlec

A tiny extension that monitors and displays the CERN LHC Beam Status on its badge.
It can also optionally show real-time notifications upon beam mode changes, including special notifications when stable beams are reached or when the beam is dumped, with optional sound alerts.

The extension receives the beam status information from CMS OMS (https://cmsoms.cern.ch/), and updates every 15 seconds.
The extension re-uses the browser's session token for the CERN single sign-on to access the OMS page. The add-on serves no functionality if you have no credentials to access this site.
The extension can send a notification if the OMS page becomes unreachable.

Credits for sound assets used:
Short Brass Fanfare 2.wav by MC5 -- https://freesound.org/s/524848/ -- License: Attribution 4.0
Fail Sound (Wa-Wa-Wah, with Staccato) by YoshikaMiyafuji -- https://freesound.org/s/835112/ -- License: Creative Commons 0
socket_connect_disconnect.mp3 by JustHallowed -- https://freesound.org/s/691007/ -- License: Attribution 4.0
Connected 02 by rhodesmas -- https://freesound.org/s/322896/ -- License: Attribution 4.0
Disconnect.wav by MaxwellDaking -- https://freesound.org/s/277349/ -- License: Attribution 3.0