Good Proxies

How to set up a proxy in Mozilla Firefox

Firefox can keep proxy parameters separately from the operating system, which makes it useful for configuring a specific work profile without changing the whole machine route.

On this guide page
What this guide covers Step-by-step flow What to verify after setup What to do next
Guide page status
  • FormatStep-by-step proxy setup
  • FreshnessCurrent KB page
  • Steps5
  • LanguageEnglish
  • ValidationIP info + proxy judge
Other setup guides

Firefox can keep proxy parameters separately from the operating system, which makes it useful for configuring a specific work profile without changing the whole machine route.

Format: step-by-step setup Steps: 5 Validate with IP info and judge

What this guide covers

Proxy setup in Mozilla Firefox: manual browser-side proxy configuration, IP verification, and header checks after enabling the route.

Firefox is especially useful when different work profiles should use different proxies independently of the operating system.
If the target site is session-heavy, test the new route in a clean profile window first.
If the workflow is reputation-sensitive, inspect blacklist statuses after the setup as well.

Step-by-step flow

1

Open the Firefox network settings

Go to Settings -> General -> Network Settings -> Configure.

2

Choose manual proxy configuration

Enable manual mode and place the IP and port into the relevant HTTP, HTTPS or SOCKS fields.

3

Match the connection type

For SOCKS addresses choose SOCKS4 or SOCKS5 correctly; for HTTP/HTTPS use the matching type.

4

Save the settings and refresh the session

Apply the parameters and open a new tab to verify the active exit route.

5

Check the IP and a judge page

First confirm the new IP on the IP info page, then open a judge page to inspect anonymity behaviour.

What to verify after setup

  • Firefox is especially useful when different work profiles should use different proxies independently of the operating system.
  • If the target site is session-heavy, test the new route in a clean profile window first.
  • If the workflow is reputation-sensitive, inspect blacklist statuses after the setup as well.

Use this page as a working checklist: apply the route, then immediately verify the visible IP, judge headers, and the real workflow.