Spotify Friend Activity

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Spotify Friend Activity",
  "version": "1.0.19",
  "action": {
    "default_icon": {
      "16": "images/sfa16.png",
      "24": "images/sfa24.png",
      "32": "images/sfa32.png"
    },
    "default_title": "Spotify Friend Activity",
    "default_popup": "popup.html"
  },
  "description": "View your friends' activity in Spotify's web player.",
  "icons": {
    "16": "images/sfa16.png",
    "48": "images/sfa48.png",
    "128": "images/sfa128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://open.spotify.com/*"
      ],
      "js": [
        "index.js"
      ]
    }
  ],
  "host_permissions": [
    "https://open.spotify.com/*"
  ],
  "permissions": [
    "storage"
  ]
}