Examine source code of Dobromat.sk

{
  "applications": {
    "gecko": {
      "id": "firefox-addon@dobromat.sk",
      "strict_min_version": "45.0"
    }
  },
  "manifest_version": 2,
  "version": "16.7.7.3resigned1",
  "default_locale": "sk",
  "name": "__MSG_extName__",
  "description": "__MSG_extDescription__",
  "icons": {
    "32": "images/dobromat_32.png",
    "48": "images/dobromat_48.png",
    "96": "images/dobromat_96.png",
    "128": "images/dobromat128p.png"
  },
  "background": {
    "page": "background.html"
  },
  "browser_action": {
    "default_icon": {
      "19": "images/dobromat_19.png",
      "38": "images/dobromat_38.png"
    },
    "default_popup": "popup.html",
    "default_title": "__MSG_popupTitle__"
  },
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "http://*/*",
    "https://*/*"
  ],
  "web_accessible_resources": [
    "box/box.html",
    "box/iframe.html"
  ]
}