Videochat Auto-mute

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Videochat Auto-mute",
  "description": "This extension keeps your microphone muted in Acano, Appear.in, and Google Hangouts unless you hold down the space bar.",
  "version": "0.3",
  "content_scripts": [
    {
      "matches": [
        "https://join.mycospace.com/*"
      ],
      "js": [
        "jquery-1.12.1.min.js",
        "lib/acano.js"
      ]
    },
    {
      "matches": [
        "https://appear.in/*"
      ],
      "js": [
        "jquery-1.12.1.min.js",
        "lib/appearin.js"
      ]
    },
    {
      "matches": [
        "https://plus.google.com/hangouts/_/*/*"
      ],
      "js": [
        "jquery-1.12.1.min.js",
        "lib/hangouts.js"
      ]
    }
  ]
}