Demos not working with Firefox

[rtoy]

Here is a list of demos that don't work with Firefox. I did not investigate why, just whether there was the expected output. Tests were done using Firefox 27.0.1 on Linux. I did not compare the audio with Chrome.

• convolution: The Spoken word and Obama examples constantly spin; no audio output. Others seem to work ok, but I didn't try every one.
• wavetable-synth Audio sounds really funny.
• Digital DJ Just keeps spinning.
• Granular Effects Just keeps splnning. Console says "Error decoding human voice!"
• Realtime Analyser Console says "Error decoding human voice!".
• Oscillator. No audio or graphics.
• FM Synthesis. No audio or graphics.
• Panning/Reverb. Audio output, but moving the red dot around doesn't produce audio like I expect.
• Javascript Processing. No audio, but visuals work. Oddly, when I press the back button, audio suddenly starts playing. How bizarre is that!?!

[cwilso]

OK, have fixed most of these issues, broken the remaining ones into separate issues. FF appears to have a problem with WebGL and Web Audio running together.