Unix timestamp to readable date/time

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Unix timestamp to readable date/time",
  "version": "0.0.2.2",
  "minimum_chrome_version": "49",
  "description": "Convert Unix timestamps on Web-page to readable date/time",
  "short_name": "timestamp→datetime",
  "icons": {
    "128": "icon-128.png"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "offline_enabled": true,
  "options_page": "options.html",
  "background": {
    "persistent": false,
    "scripts": [
      "common.js",
      "bg.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "19": "icon-128.png",
      "38": "icon-128.png"
    },
    "default_title": "timestamp ⇒ datetime"
  },
  "homepage_url": "https://github.com/michurin/chrome-extension-timestamp-to-readable",
  "author": "Alexey Michurin <[email protected]>",
  "manifest_version": 2
}