Examine source code of DevHelper

{
  "manifest_version": 2,
  "name": "DevHelper",
  "version": "0.1",
  "description": "Helps to Developer and QA while testing application",
  "icons": {
    "48": "icons/1693746.svg"
  },
  "permissions": [
    "activeTab",
    "storage",
    "sessions"
  ],
  "options_ui": {
    "open_in_tab": true,
    "page": "settings/settings.html"
  },
  "browser_action": {
    "default_icon": "icons/1693746.svg",
    "default_title": "Developer Helper",
    "default_popup": "popup/choose_ppt.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "nishit.charania@gmail.com",
      "strict_min_version": "52.0"
    }
  }
}