Chrome Extension & Firefox Add-on

Proxy Manager & User Agent Switcher - SEOULTRA

One-click proxy toggle and User-Agent switcher with 17+ bot presets. Mustang-style console popup with LED indicators. HTTP/HTTPS/SOCKS4/SOCKS5 support. No tracking, no analytics — everything stays local one.

Minimal Proxy Manager screenshot

Colourful + Green

Proxy ON and connected.

Colourful + Red

Proxy ON but cannot reach.

Grayscale

Proxy OFF.

+ Sunglasses Badge

User-Agent override is active.

Green LED

Proxy toggle is ON.

Cyan LED

User-Agent toggle is ON.

Proxy Features

  • One-click proxy toggle from the popup.
  • Supports HTTP, HTTPS, SOCKS4, and SOCKS5.
  • Can configure host, port, and bypass list.
  • Auto re-check connectivity after every change.
  • 6 toolbar icon states so you can see status straightaway.

User-Agent Switcher

  • 17+ bot presets: Googlebot, Bingbot, GPTBot, ChatGPT-User, ClaudeBot, and more.
  • Custom User-Agent text input.
  • Independent toggle — works with or without proxy.
  • Sunglasses badge on toolbar icon when active.
  • Two-way sync between popup and options page.

Mustang Console Popup

Car-style vertical flip switches with LED indicators. Toggle up = ON, toggle down = OFF. Each switch got an icon on its lever: shield (Proxy), user (UA), gear (Setup), refresh (Update). Red glowing border with SEOULTRA logo header.

General

  • Manifest V3-safe for Chrome and Firefox.
  • Professional CSS design token system.
  • Compact options page with inline form layout.
  • Smooth popup open with pre-allocated dimensions.
  • No telemetry, no tracking, no analytics. Open source.

Install Steps

  • Install from Chrome Web Store or Firefox Add-ons.
  • Click extension icon to open the console popup.
  • Flip the Proxy switch up and configure in Settings.
  • Select a User-Agent preset or key in a custom one.
  • Flip the UA switch up to activate. Done.

Screenshots

Minimal Proxy Manager screenshot 2
Minimal Proxy Manager screenshot 3
Minimal Proxy Manager screenshot 4
Minimal Proxy Manager screenshot 5
Minimal Proxy Manager screenshot 6
Minimal Proxy Manager screenshot 1 alt view

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