What's True Online?

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "What's True Online?",
  "description": "Fact-check the Internet",
  "version": "1.0.4",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "permissions": [
    "activeTab",
    "tabs",
    "https://www.facebook.com/",
    "https://whatstrue.online/url/check"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.facebook.com/*"
      ],
      "css": [
        "facebook.css"
      ],
      "js": [
        "facebook.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": "buttonword.png",
    "default_popup": "popup.html"
  },
  "background": {
    "scripts": [
      "whatstrue.js"
    ],
    "persistent": false
  }
}