Jstris+

manifest.json

{
  "manifest_version": 2,
  "name": "Jstris+",
  "version": "2.5.7",
  "description": "3rd party matchmaking, custom skins/sfx/gfx, and many more improvements to jstris!",
  "web_accessible_resources": [
    "jstris-plus.js"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://*.jstris.jezevec10.com/*"
      ],
      "all_frames": true,
      "js": [
        "content-script.js"
      ]
    }
  ],
  "icons": {
    "128": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{089cbe23-c825-4cc0-abc7-89eeea8c1043}"
    }
  }
}