Detour by Mathieu Mafille

Detour is a simple, intuitive proxy switcher. Save configurations as named profiles, switch the active one from the toolbar, and toggle it on or off — no digging through system settings.

Features:

• Save multiple named proxy profiles and switch the active one directly from the toolbar popup.
• Toggle the active proxy on or off in one click.
• Supports HTTP, HTTPS, SOCKS4, and SOCKS5 proxies.
• Username/password authentication for every scheme — including SOCKS, which - Firefox supports natively.
• Auto-switch rules: an ordered list that sends matching hosts through a chosen profile or Direct. First match wins; everything else uses the active profile. Match an exact host, *.example.com, , , or a CIDR such as 10.0.0.0/8.
• Bypass list: choose hosts that connect directly, skipping the selected proxy. Use for localhost, for all private networks, *.example.com for subdomains, or 10.0.0.0/8 for an IP range.
• Built-in connection test that reports your exit IP and latency before you commit.
• Dedicated settings page to create, rename, duplicate, or delete profiles, with import/export of all profiles and rules to a JSON file for backup or moving between machines.
• An ON badge on the toolbar icon shows at a glance when the proxy is active.

Privacy: Detour collects no data. There is no analytics, no tracking, and no remote code. Your proxy details and credentials stay in your browser's local storage and are never sent to us or anyone else. Detour is open source.