Tumblr Inactivity Checker

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Tumblr Inactivity Checker",
  "description": "Shows you any inactive Tumblr blogs you're following.",
  "version": "1.0",
  "icons": {
    "128": "uibicon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "http://www.tumblr.com/following*"
      ],
      "css": [
        "tbi.css"
      ],
      "js": [
        "jquery.js",
        "jquery.lightbox_me.js",
        "uib.js"
      ],
      "all_frames": true,
      "run_at": "document_end"
    }
  ]
}