Examine source code of Stream Locker

{
  "browser_action": {
    "default_title": "Stream Locker",
    "default_popup": "src/popup/popup.html"
  },
  "name": "Stream Locker",
  "author": "Marco Bonelli",
  "icons": {
    "16": "resources/images/icons/16.png",
    "19": "resources/images/icons/19.png",
    "38": "resources/images/icons/38.png",
    "64": "resources/images/icons/64.png",
    "128": "resources/images/icons/128.png"
  },
  "background": {
    "scripts": [
      "src/scripts/my_log.js",
      "src/scripts/background.js"
    ]
  },
  "options_ui": {
    "page": "src/options/options.html",
    "open_in_tab": true
  },
  "homepage_url": "https://github.com/mebeim/stream-locker",
  "version": "1.1.1",
  "manifest_version": 2,
  "developer": {
    "url": "https://github.com/mebeim",
    "name": "Marco Bonelli"
  },
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'",
  "permissions": [
    "tabs",
    "storage",
    "webRequest",
    "webNavigation",
    "<all_urls>"
  ],
  "applications": {
    "gecko": {
      "id": "stream-locker@mebeim.it"
    }
  },
  "description": "Block annoying popups and load streaming sites videos in the lightweight native HTML5 player."
}