Examine source code of Regex Finder

{
  "manifest_version": 2,
  "name": "Regex Finder",
  "description": "Search and highlight all matches on the page using a regular expression",
  "version": "1.0",
  "icons": {
    "64": "icons/64.png",
    "128": "icons/128.png"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icons/64.png",
    "default_title": "Regex Find",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{876f85bd-6e50-4814-b9c2-3fa2dfeae091}",
      "strict_min_version": "95.0"
    }
  }
}