Examine source code of QuickBooruSearch

{
  "manifest_version": 2,
  "name": "QuickBooruSearch",
  "short_name": "QBS",
  "version": "1.0",
  "description": "__MSG_exDes__",
  "author": "Slipper322",
  "default_locale": "en",
  "icons": {
    "48": "icons/QBS-48.png",
    "96": "icons/QBS-96.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "menus",
    "activeTab",
    "<all_urls>",
    "contextMenus"
  ],
  "browser_action": {
    "default_icon": "icons/QBS-32.png",
    "default_title": "QuickBooruSearch",
    "default_popup": "popup/choose_img.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{51446089-e3d7-4350-b00a-d484dda808e5}"
    }
  }
}