Examine source code of SocialPulse Plus

{
  "manifest_version": 2,
  "name": "SocialPulse",
  "version": "1.0",
  "description": "Notifies users about important activities on their social media accounts.",
  "icons": {
    "48": "icons/socialpulse-48.png",
    "96": "icons/socialpulse-96.png"
  },
  "permissions": [
    "storage",
    "notifications",
    "alarms",
    "https://*.facebook.com/*",
    "https://*.twitter.com/*",
    "https://*.instagram.com/*",
    "https://*.linkedin.com/*"
  ],
  "browser_action": {
    "default_icon": "icons/socialpulse-48.png",
    "default_title": "SocialPulse",
    "default_popup": "popup/popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4af40fb9-436d-46f0-a3bb-1cc9edd316d9}"
    }
  }
}