Proxy Manager User Agent

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
• Up to 8 saved proxy profiles — name each one and give it a color
• Color-coded toolbar badge — the active profile's color + short label show on the
toolbar icon, so you always know which proxy is live
• Three routing modes:
· Single — one active profile for the whole browser
· Per-tab — each tab picks its own profile
· Auto — route by per-profile URL rules (e.g. *.localhost/*)
• Proxy authentication — save a username & password per profile, no repeated prompts
• HTTP, HTTPS, SOCKS4, and SOCKS5
• Per-profile host, port, and bypass list (a bare domain also matches its subdomains)
• Import / export all settings to a file for easy backup or transfer
• Automatic connectivity re-check after every change

── User-Agent Switcher ──
• Override your browser's User-Agent from the popup or options page
• Independent enable/disable toggle — works with or without the 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

── Permissions ──
• proxy — set the browser's proxy configuration
• storage — save settings locally
• declarativeNetRequest — modify the User-Agent request header
• webRequest + auth — supply the saved proxy username/password when challenged
• <all_urls> — apply the proxy and UA override to all sites

No analytics. No tracking. No remote code. Open, auditable, and minimal by design.