Examine source code of Ghostarchive Lookup

{
  "manifest_version": 2,
  "name": "Ghostarchive Lookup",
  "version": "1.2.0",
  "description": "Search URL for captures from Ghostarchive",
  "icons": {
    "48": "icon.png",
    "96": "icon.png"
  },
  "page_action": {
    "default_icon": {
      "19": "icon.png",
      "38": "icon.png"
    },
    "default_title": "Search URL for captures from Ghostarchive",
    "show_matches": [
      "ftp://*/*",
      "http://*/*",
      "https://*/*"
    ]
  },
  "author": "github.com/gitchasing",
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "gitchasing@proton.me",
      "strict_min_version": "59.0"
    }
  },
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "activeTab",
    "contextMenus",
    "storage"
  ]
}