Examine source code of Gopass Bridge

{
  "manifest_version": 2,
  "short_name": "gopassbridge",
  "name": "Gopass Bridge",
  "version": "2.1.1",
  "description": "__MSG_extensionDescription__",
  "author": "Martin Hoefling",
  "homepage_url": "https://github.com/gopasspw/gopassbridge",
  "incognito": "spanning",
  "icons": {
    "48": "icons/gopassbridge-48.png",
    "96": "icons/gopassbridge-96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{eec37db0-22ad-4bf1-9068-5ae08df8c7e9}",
      "strict_min_version": "79.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "vendor/browser-polyfill.js",
        "generic.js",
        "content.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "vendor/browser-polyfill.js",
      "generic.js",
      "i18n.js",
      "background.js"
    ]
  },
  "options_ui": {
    "browser_style": true,
    "page": "options.html"
  },
  "default_locale": "en",
  "browser_action": {
    "browser_style": true,
    "default_icon": {
      "48": "icons/gopassbridge-48.png",
      "96": "icons/gopassbridge-96.png"
    },
    "default_title": "__MSG_browserActionTitle__",
    "default_popup": "gopassbridge.html"
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+U"
      }
    }
  },
  "permissions": [
    "<all_urls>",
    "activeTab",
    "clipboardWrite",
    "storage",
    "nativeMessaging",
    "notifications",
    "webRequest",
    "webRequestBlocking"
  ]
}