title: FireHbbtv extension by Firefox
body: <p>I am learning to build a web application for Hbbtv using the Hbbtv SDK.
  So for testing a sample app, I was looking for an emulator and came across FireHbbtv Extension by firefox.
  However, whatever I do, it says the extension is not compatible with the version of Firefox. can any of you help with what is happening</p>