Examine source code of CodeMate

{
  "manifest_version": 2,
  "name": "CodeMate",
  "version": "1.2.3resigned1",
  "description": "It is your digital handbook for coding. Use it to improve your coding skills. Click the button to get coding questions from GeeksForGeeks Website",
  "homepage_url": "https://github.com/codlocker/CodeMate/",
  "icons": {
    "48": "icons/mate.png"
  },
  "permissions": [
    "webRequest",
    "<all_urls>"
  ],
  "browser_action": {
    "default_icon": "icons/mate.png",
    "default_title": "CodeMate",
    "default_popup": "popup/index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0e59697c-e067-4f48-8c05-91ffcf347cf7}"
    }
  }
}