Examine source code of Druva Browser Extension

{
  "version": "1.1.0",
  "manifest_version": 2,
  "name": "Druva Browser Extension",
  "author": "Druva",
  "description": "Druva browser extension for multi-login support.",
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "content_scripts": [
    {
      "matches": [
        "*://*.druva.com/*",
        "*://*.drtst.org/*",
        "*://*.drtst.in/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "background": {
    "scripts": [
      "background.js",
      "lib/common.js"
    ]
  },
  "browser_action": {
    "default_icon": "img/druva-logo-grey.png",
    "default_popup": "popup.html"
  },
  "permissions": [
    "cookies",
    "storage",
    "webRequest",
    "webRequestBlocking",
    "*://*.druva.com/",
    "*://*.drtst.org/",
    "*://*.drtst.in/"
  ],
  "icons": {
    "32": "img/druva-logo-grey.png"
  },
  "web_accessible_resources": [
    "lib/common.js",
    "lib/inject.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{4897722c-e8a0-48a1-a5cc-2cf80249e27a}",
      "strict_min_version": "79.0"
    }
  }
}