Examine source code of JetBoost

{
  "manifest_version": 2,
  "name": "JetBoost",
  "version": "1.0",
  "description": "Increase your internet speed by blocking unnecessary elements.",
  "icons": {
    "48": "icon.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icon.png"
    }
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "popup.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e1e93a40-44ed-495e-a3a7-ca1933d797b8}"
    }
  }
}