Examine source code of Eden_

{
  "manifest_version": 2,
  "name": "Eden",
  "version": "1.2",
  "description": "This browser extension allows user to search in multiple websites with their input search key and also with their custom website URL.",
  "permissions": [
    "activeTab",
    "storage"
  ],
  "icons": {
    "128": "icon.png"
  },
  "browser_action": {
    "default_popup": "popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c36ff899-b0b5-416e-b0bc-23ba707fdc7c}"
    }
  }
}