Examine source code of Auto Zoom on Hover

{
  "manifest_version": 2,
  "name": "Auto Zoom on Hover",
  "version": "1.0",
  "description": "Automatically zoom in text when hovering.",
  "permissions": [
    "activeTab",
    "tabs"
  ],
  "browser_action": {
    "default_title": "Auto Zoom on Hover",
    "default_popup": "popup.html"
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{97ac8226-5f6e-4758-9f09-a69f3d588d60}"
    }
  }
}