Examine source code of Burp Bridge

{
  "manifest_version": 2,
  "name": "Burp Bridge",
  "version": "1.0.0",
  "description": "BurpSuite-only proxy switcher for Firefox with polished UX.",
  "homepage_url": "https://example.com/burp-bridge",
  "support_url": "https://example.com/burp-bridge/support",
  "permissions": [
    "proxy",
    "storage",
    "tabs",
    "downloads",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Burp Bridge",
    "default_icon": {
      "16": "icons/icon-off-16.png",
      "32": "icons/icon-off-32.png",
      "48": "icons/icon-off-48.png",
      "64": "icons/icon-off-64.png"
    },
    "default_popup": "popup/popup.html"
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "64": "icons/icon-64.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true,
    "browser_style": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "burpbridge@local.dev",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}