Examine source code of ONSE RADIO

{
  "manifest_version": 2,
  "name": "ONSE RADIO",
  "description": "ONSE RADIO EXTENSION te permet d'ecoute ta radio préféré à tout moment",
  "version": "0.2",
  "browser_action": {
    "default_popup": "onsetexte.html"
  },
  "icons": {
    "64": "img/logoOnse_64.png",
    "128": "img/logoOnse_128.png"
  },
  "permissions": [
    "unlimitedStorage",
    "notifications"
  ]
}