ForceCoder

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "ForceCoder",
  "version": "1.2",
  "manifest_version": 2,
  "description": "CodeForces extension",
  "icons": {
    "48": "icon.png"
  },
  "permissions": [
    "tabs",
    "http://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://codeforces.com/*"
      ],
      "js": [
        "jquery.js",
        "script.js"
      ],
      "run_at": "document_start"
    }
  ]
}