Examine source code of PwdHash

{
  "manifest_version": 2,
  "name": "Pwdhash",
  "version": "2.1resigned1",
  "default_locale": "en",
  "description": "Automatically generates per-site passwords if you prefix your password with @@ or F2.",
  "applications": {
    "gecko": {
      "id": "{bb8d77b0-a845-4249-a205-ef7395587b69}",
      "strict_min_version": "42.0"
    }
  },
  "icons": {
    "48": "icons/pwdhash-48.png",
    "96": "icons/pwdhash-96.png"
  },
  "author": "Stanford University",
  "homepage_url": "https://www.pwdhash.com",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content/md5.js",
        "content/domain-extractor.js",
        "content/hashed-password.js",
        "content/stanford-pwdhash.js"
      ]
    }
  ]
}