Smartproxy Firefox Extension

Guide by Dolf van der Linde

The Smartproxy Firefox extension only works with residential and datacenter proxies.

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For a quick and easy set up on the Firefox browser, download Smartproxy Firefox Extension here.

Connecting

Once you've added the extension, follow these simple steps to start connecting via proxy:

  1. Choose a proxy type.
  2. Select a proxy location.
  3. Select the session type: Sticky vs Rotating port.
  4. Select an authentication method:
  1. Click on the slider to turn proxies on.
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Smartproxy Firefox Extension setup example

Once connected, the extension will display your chosen location and session type.

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Smartproxy Firefox Extension connected

Features

Clear cookies and cache
With the help of this feature, you can clear your browser's cache and cookies with a click of a button. To clear them:

  1. Open the Smartproxy extension.
  2. Click on the settings button in the top-right corner.
  3. Click on Clear cookies and cache and voilà!
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Feature - Clear cookies and cache

Dark mode
The Smartproxy browser Extensions also offer a dark mode for all of you night owls. To enable it:

  1. Open the Smartproxy extension.
  2. Click on the settings button in the top-right corner.
  3. Choose the Dark side.
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Feature - Dark mode

Errors

Possible errors and their meaning:

  • Please select a country.
    Before connecting via proxies, you need to select a location first. Choose random so that a country is assigned to you randomly.
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Error - Please select a country.

  • Unable to connect with the provided credentials.
    This error means that you've incorrectly entered your proxy username and/or password. Please login to your dashboard account and go to proxy user section. You can adjust the credentials there.
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Error – Unable to connect with the provided credentials.

  • Too many unsuccessful login attempts. Please try again later.
    You will see this error if you've entered your credentials incorrectly 5 times in a row. It's there to prevent abuse and ensure that our services are functioning as intended. The block will clear after 1 hour.
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Error – Too many unsuccessful login attempts. Please try again later.

  • Unsuccessful request. Try changing the location or the session type and connect again.
    If you receive this error, try turning the proxy on using a different location/session type. If the error message persists, make sure the following details are correct:
  • Your residential or datacenter subscription is active.
  • There is no traffic limit set for your Proxy User. You can check that in Dashboard -> Proxy user (Allocated traffic column).
  • If you are using Whitelisted IP authentication, check if the current IP of your device is whitelisted. You can check that in Dashboard -> Whitelist.

If everything looks fine, but you still get this error, let us know via Live chat!

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Error - Unsuccessful request. Try changing the location or the session type and connect again.

Note: sometimes the extension is lagging when using it on a secondary screen. If that happens, use the extension on your primary screen.