Examine source code of Mute sites by default

{
  "manifest_version": 2,
  "name": "__MSG_name__",
  "version": "1.11resigned1",
  "applications": {
    "gecko": {
      "id": "@mute-sites-by-default"
    }
  },
  "description": "__MSG_description__",
  "homepage_url": "https://github.com/abba23/mute-sites-by-default",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "default_locale": "en",
  "permissions": [
    "storage",
    "tabs"
  ],
  "options_ui": {
    "page": "options/options.html",
    "browser_style": false
  },
  "background": {
    "scripts": [
      "common.js",
      "background/background.js"
    ]
  }
}