Examine source code of Open Selected Links

{
  "manifest_version": 3,
  "name": "Open Selected Links",
  "version": "1.0",
  "description": "Open selected links in new tabs (bug triage helper)",
  "developer": {
    "name": "Daniel Veditz"
  },
  "icons": {
    "48": "ic_open_in_new_black_48px.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "selected-links@dveditz"
    },
    "gecko_android": {}
  },
  "permissions": [
    "activeTab",
    "contextMenus",
    "cookies",
    "scripting"
  ],
  "background": {
    "scripts": [
      "openselectedlinks.js"
    ]
  }
}