Examine source code of Own-proxy

{
  "manifest_version": 2,
  "name": "Own-proxy",
  "description": "Simple extension to support proxy connection via authorized SOCKS5",
  "version": "0.6.0",
  "icons": {
    "48": "/assets/icons/logo.svg"
  },
  "browser_action": {
    "browser_style": true,
    "default_title": "Proxy",
    "default_popup": "/entry-points/popups/main_popup.html"
  },
  "background": {
    "page": "/entry-points/background/background.html"
  },
  "options_ui": {
    "page": "/entry-points/options/options.html",
    "browser_style": true
  },
  "permissions": [
    "proxy",
    "storage",
    "tabs",
    "downloads",
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{391fab89-c8ee-4042-bc54-4b2bcf477fac}"
    }
  }
}