Examine source code of Bietfuchs-Toolbar

{
  "manifest_version": 2,
  "name": "Bietfuchs Web Extension für Firefox",
  "short_name": "Bietfuchs",
  "version": "2.1resigned1",
  "description": "Erteile Bietaufträge an den Bietfuchs schnell und direkt von der Artikleseite aus.",
  "browser_action": {
    "default_icon": "img/bietfuchs19.png",
    "default_title": "Bietfuchs-Toolbar",
    "default_popup": "popup/popup_logged_out.html"
  },
  "icons": {
    "16": "img/bietfuchs16.png",
    "19": "img/bietfuchs19.png",
    "128": "img/bietfuchs128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "toolbar_cs.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://*.bietfuchs.de/*"
      ],
      "js": [
        "web_login_logout.js"
      ],
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "util/bigint.js",
      "util/rsa.js",
      "util/prng4.js",
      "util/rng.js",
      "util/base64.js",
      "util/xhr.js",
      "background/background.js"
    ]
  },
  "permissions": [
    "*://*/",
    "tabs"
  ],
  "web_accessible_resources": [
    "toolbar/toolbar.css",
    "toolbar/toolbar.html",
    "toolbar/toolbar.js",
    "toolbar/toolbar.css",
    "toolbar/toolbar_logged_in.html",
    "toolbar/toolbar_logged_out.html",
    "toolbar/tooltip.css"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "bietfuchsbar@bietfuchs.de"
    }
  }
}