Examine source code of Give as you Live Donation Reminder

{
  "author": "Give as you Live Ltd",
  "name": "Give as you Live Donation Reminder",
  "version": "6.1.15.0",
  "description": "Give as you Live Online is the free way to raise funds for charity with your everyday online shopping.",
  "manifest_version": 2,
  "homepage_url": "https://www.giveasyoulive.com",
  "background": {
    "persistent": true,
    "scripts": [
      "./background.bundle.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.giveasyoulive.com/*"
      ],
      "js": [
        "./extensionInstalled.bundle.js"
      ],
      "run_at": "document_start"
    },
    {
      "css": [
        "./styles/css/serp.css"
      ],
      "js": [
        "./serp.bundle.js"
      ],
      "matches": [
        "*://*.google.com/*",
        "*://*.google.co.uk/*",
        "*://*.bing.com/*",
        "*://uk.search.yahoo.com/*",
        "*://search.yahoo.com/*"
      ],
      "run_at": "document_end"
    },
    {
      "js": [
        "./retailer.bundle.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_start"
    }
  ],
  "permissions": [
    "storage",
    "webNavigation",
    "webRequest",
    "http://*/*",
    "https://*/*"
  ],
  "browser_action": {
    "default_popup": "./views/popup.html",
    "default_icon": {
      "128": "images/inactive_128.png"
    }
  },
  "icons": {
    "16": "images/icon_16.png",
    "44": "images/icon_44.png",
    "48": "images/icon_48.png",
    "50": "images/icon_50.png",
    "96": "images/icon_96.png",
    "128": "images/icon_128.png",
    "150": "images/icon_150.png"
  },
  "web_accessible_resources": [
    "images/*.svg",
    "fonts/*.woff2",
    "fonts/*.ttf",
    "fonts/*.otf"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "gayl_firefox@everyclick.com"
    }
  }
}