> ## Documentation Index
> Fetch the complete documentation index at: https://help.decodo.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Firefox Browser Proxy Setup Guide

> Set up proxies directly on the Firefox browser

## Getting Started

Before proceeding, ensure you have:

* No other VPN or proxy active.
* The **proxy endpoint** and **port** (e.g., `us.decodo.com:10101`).
* Your **proxy username** and **password** (or a **whitelisted IP** set).

<Tip>
  **Proxy Guides**

  Learn how to find **proxy details** in your dashboard for each proxy type [**here**](https://help.decodo.com/docs/proxy-quick-start-guides).
</Tip>

## Proxy Setup

<Steps>
  <Step>
    Open Firefox.
  </Step>

  <Step>
    Click the **three horizontal bars** in the top right.
  </Step>

  <Step>
    Then, click **Settings**.

    <img src="https://mintcdn.com/decodo/eRLuBYAbadfvmqDE/images/docs/3bdcf25c0450410e1035c24f42c2609a6d9017f011736f06f8c3b9e28f1a641f-Screenshot_2025-09-20_at_18.58.34.png?fit=max&auto=format&n=eRLuBYAbadfvmqDE&q=85&s=e08546e1a7427cbebcd76004596a9a50" style={{ width:"46%" }} className="mx-auto" width="1200" height="2636" data-path="images/docs/3bdcf25c0450410e1035c24f42c2609a6d9017f011736f06f8c3b9e28f1a641f-Screenshot_2025-09-20_at_18.58.34.png" />
  </Step>

  <Step>
    In the **General** tab, scroll down to the **Network Settings** section and click **Settings...**.

    <img src="https://mintcdn.com/decodo/7Hj3tfc-1rGMirwk/images/docs/ac7c565b3843365272ec197e2080fd4ce81629162d75f1602b6cd2e60abff768-Group_427323410.png?fit=max&auto=format&n=7Hj3tfc-1rGMirwk&q=85&s=531e692329b28bf6733514b1e199c9a2" style={{ width:"64%" }} className="mx-auto" width="2200" height="432" data-path="images/docs/ac7c565b3843365272ec197e2080fd4ce81629162d75f1602b6cd2e60abff768-Group_427323410.png" />
  </Step>

  <Step>
    Select **Manual proxy configuration**.
  </Step>

  <Step>
    Fill in the following fields:

    * **HTTP Proxy** (e.g., `ua.decodo.com`).
    * **Port** (e.g. `40001`).
    * Check **Also use this proxy for HTTPS**.

    <Note>
      Alternatively, you can set up a `SOCKS5` proxy in the **SOCKS Host** field.

      * If so, also check **SOCKS v5**.
    </Note>
  </Step>

  <Step>
    Click **OK**.

    <img src="https://mintcdn.com/decodo/eRLuBYAbadfvmqDE/images/docs/2cb04bb2a98ef45dcd60c6a4ed733b0b53978f9bde596273e8f8cd5d86dff8b8-Group_427323483.png?fit=max&auto=format&n=eRLuBYAbadfvmqDE&q=85&s=d01ea7ba6cb534bb4aaeaab951a369b5" style={{ width:"64%" }} className="mx-auto" width="3448" height="4028" data-path="images/docs/2cb04bb2a98ef45dcd60c6a4ed733b0b53978f9bde596273e8f8cd5d86dff8b8-Group_427323483.png" />
  </Step>

  <Step>
    You'll be prompted to enter credentials if you are not using a whitelisted IP.

    * **Username**: Proxy username.
    * **Password**: Proxy password.

    <Warning>
      ### `SOCKS5`

      Ensure you are using **advanced parameters** directly in the proxy username to specify the **location** and keep the IP from **rotating** with **residential** and **mobile** proxies. Refer to the [**Common Issues**](https://help.decodo.com/docs/firefox-integration?isFramePreview=true#socks5-1) section below to learn how.
    </Warning>

    <img src="https://mintcdn.com/decodo/7ZKpc3GV1DKO_XQr/images/docs/161f8fe122a9caf18f7f59e4e04a556f23c67f67f640c849b4e4cd67faf9e777-Group_427323419.png?fit=max&auto=format&n=7ZKpc3GV1DKO_XQr&q=85&s=66183a3e75cc150e707387caf0aca0e4" style={{ width:"64%" }} className="mx-auto" width="2200" height="1052" data-path="images/docs/161f8fe122a9caf18f7f59e4e04a556f23c67f67f640c849b4e4cd67faf9e777-Group_427323419.png" />
  </Step>
</Steps>

### Verify the Connection

* Open the Firefox browser and visit [**ip.decodo.com**](https://ip.decodo.com/). If successful, your IP address will reflect the location of the proxy

## Common Issues

### Blocklist

⚠️ Please be aware that we [**restrict access to some websites**](https://decodo.com/faq/general/do-you-have-any-blocked-sites).

### `SOCKS5`

**Residential and Mobile Proxy Support Limitations**

<AccordionGroup>
  <Accordion title="Country Targeting" icon="gear">
    The `gate.decodo.com` **endpoint** and the `7000` **port** must be used to utilize `SOCKS5` Residential or Mobile proxies. **Country** endpoints, such as `us.decodo.com`, will not function!

    You can target specific locations instead by specifying the location in your username using **advanced** **parameters**:

    * e.g.: `user-username-country-us` will connect to the **USA** pool.
  </Accordion>

  <Accordion title="Proxy Rotation" icon="gear">
    To get a **sticky** `SOCKS5` Residential or Mobile proxy in a **tool**, you must use a `session` **parameter**. Otherwise, the proxy will always rotate even with a set `sessionduration` parameter.

    * e.g.: `user-username-session-abc123-sessionduration-30` will connect to the same session.
      * The **session ID** name can be defined by any string of your choice.
  </Accordion>
</AccordionGroup>

<Note>
  Learn more in our **advanced** **parameter** guides for [**Residential**](https://help.decodo.com/docs/residential-proxy-advanced-parameters/) and [**Mobile**](https://help.decodo.com/docs/mobile-proxy-advanced-parameters/) proxies.
</Note>

### Direct IP

<AccordionGroup>
  <Accordion title="Direct IP Parameter Support" icon="gear">
    If you buy an IP list, you can specify which IPs to connect to using the **direct** `ip` parameter in the proxy username: `user-username-ip-x.x.x.x`

    * Supported products: **DC Pay/IP**, **Dedicated DC**, **ISP Pay/IP**, **Dedicated ISP** plans.
    * Products that offer access to the full proxy pool, such as residential proxies, do not support this parameter.
  </Accordion>

  <Accordion title="IP:PORT Format" icon="gear">
    * Decodo proxies don't support an `IP:PORT` format by default.
    * You must use the **endpoint** rotator format (e.g., `us.decodo.com:10101`).
    * If necessary, try the workaround [**here**](https://help.decodo.com/docs/how-to-get-ip-port-format#/), but it only works temporarily before requiring another setup update.
  </Accordion>
</AccordionGroup>

### Troubleshooting

If you experience any other issues, check out our main [**troubleshooting**](https://help.decodo.com/docs/proxy-troubleshooting) section.

***

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