Proxy Manager & User Agent Switcher - SEOULTRA

Tracking since Apr 16, 2026.

Changelog

• Apr 16, 2026
  description

  A minimalist proxy manager for Chrome built with Manifest V3.
  Easily toggle a fixed proxy on/off, with a clear toolbar indicator:
  
  🟢 Green “M” = Proxy ON (connected)
  🟡 Yellow “M” = Warning (enabled but proxy not reachable / misconfigured)
  🔴 Red “M” = Proxy OFF
  ✨ Features
  Toggle proxy host/port with one click
  Support for HTTP, HTTPS, SOCKS4, SOCKS5
  Bypass list configuration (e.g. <local>, 127.0.0.1)
  Clean and minimalist UI (popup + options page) with soft card shadows
  MV3-compliant — Chrome prompts if proxy requires authentication

  Proxy Manager & User Agent Switcher — SEOULTRA
  
  A proxy manager and User-Agent switcher for Chrome built with Manifest V3. Toggle features on/off with a Mustang-style console popup.
  
  ── Toolbar status icon ──
  • Colorful logo + GREEN dot           → Proxy ON and connected
  • Colorful logo + RED dot             → Proxy ON but not reachable / misconfigured
  • Grayscale logo (no dot)             → Proxy OFF
  • Grayscale logo + UA badge           → Proxy OFF, User-Agent ON
  • Colorful logo + GREEN dot + UA badge → Proxy ON connected + User-Agent ON
  • Colorful logo + RED dot + UA badge   → Proxy ON not reachable + User-Agent ON
  
  ── Proxy Features ──
  • One-click enable/disable from the popup
  • Supports HTTP, HTTPS, SOCKS4, and SOCKS5 schemes
  • Configurable host, port, and bypass list (e.g. <local>, 127.0.0.1, localhost)
  • Automatic connectivity re-check after every change
  • MV3-compliant: Chrome will prompt you if the proxy requires authentication
  
  ── User-Agent Switcher ──
  • Override your browser's User-Agent header from the popup or options page
  • 17+ presets: Googlebot, Bingbot, YandexBot, Baiduspider, DuckDuckBot,
    Applebot, GPTBot, ChatGPT-User, OAI-SearchBot, ClaudeBot, Claude-Web,
    PerplexityBot, Bytespider, Cohere-AI, Twitterbot, Facebookbot, LinkedInBot
  • Custom User-Agent text input
  • Independent enable/disable toggle — works with or without proxy
  
  ── General ──
  • Mustang console popup — car-style vertical toggle switches with LED indicators
  • Color-coded LEDs: green (proxy), cyan (UA)
  • Icons on toggle levers: shield (proxy), user (UA), gear (setup), refresh (update)
  • 6 toolbar icon states — instantly see proxy + UA status at a glance
  • Two-way sync — popup and options page stay in sync in real time
  • Professional CSS design token system — consistent theming across all surfaces
  • Compact options page — scheme, host, port in one row
  • Smooth popup open with pre-allocated dimensions
  • Settings stored locally in chrome.storage.local — nothing leaves your browser
  
  ── What's new in 1.4.0 ──
  • Mustang console popup — car-style toggle console with vertical flip switches
    (up = ON, down = OFF), LED indicators, red glowing border, SEOULTRA logo header
  • Icons on toggle levers — shield, user, gear, refresh on each switch handle
  • Compact options page — scheme/host/port on one row, streamlined buttons,
    "Proxy Setting" card title, SEOULTRA logo header
  • Professional CSS design tokens — 40+ variables for consistent theming
  • Smooth popup open — pre-allocated dimensions + opacity fade-in
  • Removed viewport emulation and network throttle (experimental, will return)
  
  ── What's new in 1.3.0 ──
  • User-Agent Switcher — new feature with 17+ bot presets plus custom input
  • 6 toolbar icon states — unique icons for every proxy/UA combination,
    with a sunglasses badge overlay when User-Agent is active
  • Options page UA section — full card with cyan/teal theme, toggle,
    dropdown, custom input, and live preview status bar
  • Popup redesigned — proxy and UA are separate sections with independent
    toggles, color-coded badges, and "UA ACTIVE" indicator
  • Footer moved — "Check for updates" is now in the popup footer
  • Renamed to "Proxy Manager & User Agent Switcher — SEOULTRA"
  • Added declarativeNetRequest permission for header modification
  
  ── What's new in 1.2.1 ──
  • Two-way sync between popup and options — toggling Enable on either
    surface updates the other in real time
  • Refined options-page footer with SEOULTRA branding (linked to seoultra.id),
    single-row layout on desktop, stacked on mobile
  • Page title updated to "Minimal Proxy Setting — SEOULTRA"
  • Fixed an MV3 service-worker bug where setIcon could fail with
    "Failed to fetch" on first install
  • Documentation cleanup
  
  ── What's new in 1.2.0 ──
  • Brand refresh — now uses a unified logo that turns grayscale when disabled
    and shows a green/red status dot when enabled
  • Transparent popup background for a cleaner look in the toolbar
  • New "Check for updates" link in both popup and options page
  • Reorganized assets folder and refined background worker code
  • Renamed to "Minimal Proxy Manager — SEOULTRA"
  
  ── What's new in 1.1.0 ──
  • Initial public release with HTTP/HTTPS/SOCKS support, bypass list,
    and three-state toolbar icon
  
  ── Permissions ──
  • proxy                — required to set Chrome's proxy configuration
  • storage              — saves settings locally
  • declarativeNetRequest — required to modify the User-Agent request header
  • <all_urls>           — required so the proxy and UA override apply to all sites
  
  No analytics. No tracking. No remote code. Open, auditable, and minimal by design.

• Apr 16, 2026
  short_description

  Set a proxy host/port & bypass list. Green=ON, Yellow=Warning, Red=OFF.

  Proxy toggle & User-Agent switcher. HTTP/HTTPS/SOCKS4/SOCKS5, 17+ bot presets & custom UA.

• Apr 16, 2026
  name

  Minimal Proxy Manager (MV3 Safe)

  Proxy Manager & User Agent Switcher - SEOULTRA

• Apr 16, 2026
  permissions

  proxy, storage

  proxy, storage, declarativeNetRequest

Permissions & access

Permissions

proxystoragedeclarativeNetRequest

Host access

<all_urls>

Screenshots

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