manifest.json

{

    "manifest_version": 2,
    "name": "Kelabingo",
    "version": "0.5",
  
    "description": "Helpottaa Kela-elämää.",
  
    "icons": {
      "48": "icons/kela-48.png"
    },

    "permissions": [
      "activeTab"
    ],

  
    "content_scripts": [
      {
        "matches": ["https://asiointi.kela.fi/*"],
        "js": ["kelabingo.js"]
      }
    ]
  
  }