Examine source code of Tab Saver

{
  "manifest_version": 2,
  "name": "Tab Saver",
  "version": "1.0.2",
  "description": "Allows you to easily save your tabs so that you dont have as many open at a time",
  "homepage_url": "https://github.com/AnyMinorDeerPanda/tabsaver",
  "icons": {
    "32": "assets/icons/tabsaver-32-light.png"
  },
  "permissions": [
    "tabs",
    "storage"
  ],
  "browser_action": {
    "default_icon": "assets/icons/tabsaver-32-light.png",
    "default_title": "TabSaver",
    "default_popup": "popup/tabsaver.html"
  },
  "web_accessible_resources": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "tabsaver@xtract.space",
      "strict_min_version": "57.0"
    }
  }
}