Examine source code of Bibliohive

{
  "browser_action": {
    "default_icon": {
      "32": "icons/icon32.png"
    },
    "browser_style": true,
    "default_title": "Bibliohive",
    "default_popup": "bh_html.html"
  },
  "description": "Save an article to my hive",
  "homepage_url": "https://www.bibliohive.com/login.html",
  "manifest_version": 2,
  "name": "Bibliohive",
  "permissions": [
    "tabs"
  ],
  "icons": {
    "32": "icons/icon32.png"
  },
  "version": "1.0.19resigned1",
  "browser_specific_settings": {
    "gecko": {
      "id": "{FB4D1A8F-C036-4A6A-A489-1922989D6B55}"
    }
  }
}