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Configuration guide

FlClash System Proxy Setup and Browser Troubleshooting

System proxy settings only affect apps that respect them. Browser extensions, developer tools, and some apps may use their own proxy configuration.

FlClash guide Last checked: 2026-06-01 GitHub Releases
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FlClash guide

This site organizes FlClash download, setup, configuration, and troubleshooting information by platform.

Understand three layers

  • In-app proxy: node and proxy mode selected inside FlClash.
  • System proxy: proxy address exposed by the operating system.
  • Browser proxy: proxy rules set by the browser or extensions.

Troubleshooting order

  1. Confirm that FlClash is connected to a usable node.
  2. Make sure proxy mode is not Direct.
  3. Check whether system proxy is enabled.
  4. Disable browser extensions that may control proxy settings.
  5. Test another browser to isolate browser-specific configuration issues.

Restore system proxy

If the browser still cannot connect after closing FlClash, system proxy settings may not have been restored. Open your OS network proxy settings and disable manual proxy or remove proxy values written by another tool.

Read next

ConfigImport a subscription URL

Prepare your subscription URL and troubleshoot import failures.

 ModesRule, Global, Direct

Learn which proxy mode fits each common use case.

 TUNTUN mode explained

Understand when TUN mode is useful and how to verify it.

 SystemSystem proxy checks

Compare browser, system, and app-level proxy behavior.

References