Examine source code of Links

{
  "manifest_version": 2,
  "name": "Links",
  "version": "0.3",
  "description": "Manage bookmarks: read/write, check for duplicates, and search.",
  "permissions": [
    "bookmarks",
    "storage",
    "tabs"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "links@maxehmum.com"
    }
  },
  "browser_action": {
    "default_icon": "icons/icon.svg",
    "default_title": "Links",
    "default_popup": "popup/popup.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "48": "icons/icon.svg",
    "96": "icons/icon.svg"
  }
}