You will need to install a user script manager extension to install this script.
IMPORTANT!: THIS SCRIPT IS DETECTED AND OUTDATED!
YOU SHOULD USE THE NEW SCRIPT VERSION WORKING WITHOUT EVEN HAVING GAMDOM OPEN, WITH NO BAN RISK! GET IT ON https://greasyfork.org/en/scripts/38993-gamdom-rain-notifier (make sure to read its description, it says how to make it work)
Donations(Steam via 2nd acc): https://goo.gl/yVHbSe
Creative Commons License
Gamdom Rain/Storms Notifications by Antonio Díaz is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
[i]Includes Monero miner.