Examine source code of mini bookmarks

{
  "description": "Small, but excellent in searchability, another bookmark.",
  "version": "1.0.3",
  "manifest_version": 2,
  "name": "mini bookmarks",
  "background": {
    "scripts": [
      "background.bundle.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon_48.png"
  },
  "icons": {
    "16": "icon_16.png",
    "48": "icon_48.png",
    "128": "icon_128.png"
  },
  "permissions": [
    "storage",
    "unlimitedStorage",
    "tabs"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "{641a806a-d51c-41c9-abea-e6c314740475}"
    }
  }
}