This extension displays currently active streams in a simple popup to always be one click away from your favorite Hearthstone streamers. Currently, only Twitch streams are supported, but more are planned to follow.
** Update **
Notifications have now been added. You can visit a particular channel page, click the "Notify Me" button, and next time the stream goes online you will get a desktop notification with a link to the stream.
This extension is completely open source! You can contribite here: https://github.com/colin-dumitru/HearthstoneStreams
Bugs or suggestions? Submit them here: https://github.com/colin-dumitru/HearthstoneStreams/issues