Restraint

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Restraint",
  "version": "1.6",
  "author": "David Struewing",
  "description": "Block distracting websites for five minutes or five hours or all day.",
  "icons": {
    "48": "/icons/icon48.png",
    "128": "/icons/icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "externally_connectable": {
    "matches": [
      "chrome-extension://pmfjccjkgpgjfkednjngklmoeckidkka/blocked.html"
    ]
  },
  "permissions": [
    "webRequest",
    "<all_urls>",
    "webRequestBlocking",
    "tabs",
    "alarms"
  ],
  "browser_action": {
    "default_icon": {
      "19": "/icons/icon19.png"
    },
    "default_popup": "popup.html"
  },
  "web_accessible_resources": [
    "blocked.html"
  ]
}