Examine source code of Password Boss WebApp

{
  "homepage_url": "https://app.passwordboss.com/",
  "name": "__MSG_appName__",
  "author": "CyberFOX",
  "version": "6.2.585",
  "description": "__MSG_appDescription__",
  "browser_specific_settings": {
    "gecko": {
      "id": "passwordboss-v6@passwordboss.com",
      "strict_min_version": "130.0"
    }
  },
  "default_locale": "en",
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "128": "icons/icon-128-grey.png"
    },
    "default_title": "__MSG_appName__"
  },
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "webNavigation",
    "contextMenus",
    "unlimitedStorage",
    "clipboardWrite",
    "<all_urls>"
  ],
  "icons": {
    "128": "icons/icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "exclude_matches": [
        "*://*.adtrafficquality.google/sodar/*",
        "*://*.amazon-adsystem.com/*",
        "*://*.doubleclick.net/*",
        "*://*.googlesyndication.com/sodar/*",
        "*://*.openx.net/w/*",
        "*://*.pubmatic.com/AdServer/*",
        "*://*.safeframe.googlesyndication.com/safeframe/*",
        "*://*.taboola.com/st/*",
        "*://acdn.adnxs.com/dmp/async_usersync*",
        "*://cdn.taboola.com/libtrc/*",
        "*://cdn.taboola.com/scripts/*",
        "*://challenges.cloudflare.com/*",
        "*://platform.twitter.com/widgets/*",
        "*://plusone.google.com/_/+1/*",
        "*://s.yimg.com/jk/gtm/*",
        "*://ssp-sync.criteo.com/user-sync/*",
        "*://tpc.googlesyndication.com/safeframe/*",
        "*://www.facebook.com/plugins/*",
        "*://contextual.media.net/checksync*",
        "*://ads.yieldmo.com/pbcas"
      ],
      "js": [
        "vendors/jquery-4.0.0.min.js",
        "vendors/jquery.livequery.min.js",
        "content.js"
      ],
      "match_about_blank": true,
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": [
        "https://*/*"
      ],
      "exclude_matches": [
        "*://challenges.cloudflare.com/*",
        "*://platform.twitter.com/widgets/*",
        "*://plusone.google.com/_/+1/*",
        "*://www.facebook.com/plugins/*"
      ],
      "js": [
        "page-script.js"
      ],
      "match_about_blank": true,
      "run_at": "document_start",
      "all_frames": true,
      "world": "MAIN"
    }
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'; connect-src 'self' data: https://sentry.passwordboss.com;",
  "web_accessible_resources": [
    "manifest.json",
    "page-script.js",
    "ui/index.html",
    "ui/static/js/*.js",
    "ui/static/css/*.css",
    "ui/static/media/*.woff"
  ]
}