Add automated test for the following Moztrap scenario: https://moztrap.mozilla.org/manage/case/11513/ Steps: 1. Launch Firefox. 2. Navigate to http://goo.gl/le1tSu. 3. Try out all the available options: toggle the play/pause buttons, mute/unmute, seek, use the contextual menu options. * All the performed actions work correctly. 4. In a New Tab, open http://goo.gl/ZjMXaA and repeat step 3. * The audio file is played correctly. All the performed actions work accordingly. 5. In a Private Browsing Window, navigate to http://goo.gl/Rs80fK and repeat step 3 for both demos. * The audio demos are played correctly. All the performed actions work accordingly. 6. In a New Window, navigate to http://goo.gl/TlJfJB and use all the available options: add Audio Source, create an AudioBufferSourceNode, add Module and connect them accordingly. Make sure to connect to the green circle on the right hand sign. * Whatever nodes are connected, all sounds can be heard. Note: This test is part of the manual regression suite, hence automation coverage is highly desirable.

Bug 489474 was for Mozmill and had a nearly ready patch. So have a look if necessary.

Keep in mind that we most likely cannot land such a patch right now due to the dependency of installed codecs etc. Without PuppetAgain it would be hard to keep everything up2date.

Wait. Commented on the wrong bug. This is for audio formats. So it would be good to know which additional codecs would be necessary to be installed on our various supported platforms. If there are any.