---
title: How to add the eBlocker certificate in Thunderbird.
description: "## Introduction This guide will help with installing the eBlocker certificate in Thunderbird. With just a few steps can add eBlocker HTTPS support in Thunderbird. The process is very similar to adding [eBlocker HTTPS support to Firefox](https://eblocker.org/en/docs/how-to-add-the-eblocker-certificate-in-firefox-cliqz-and-seamonkey/). It is assumed…"
url: "https://eblocker.org/en/docs/how-to-add-the-eblocker-certificate-in-thunderbird/"
updated: "2021-09-14"
category: First Steps / Install HTTPS certificate
tags:
  - Editing Done
  - HTTPS function (SSL/HTTPS)
---

# How to add the eBlocker certificate in Thunderbird.

## Introduction

This guide will help with installing the eBlocker certificate in Thunderbird. With just a few steps can add eBlocker HTTPS support in Thunderbird. The process is very similar to adding [eBlocker HTTPS support to Firefox](https://eblocker.org/en/docs/how-to-add-the-eblocker-certificate-in-firefox-cliqz-and-seamonkey/).

It is assumed that HTTPS support has already been activated on your eBlocker device. If this is not the case please see this document: [Setup Instructions: START HERE-Advanced Setup](https://eblocker.org/en/docs/setup-instructions-start-here-eblocker-beginners/#Advanced_Setup)

## Steps To Install

- On the HTTPS configuration page, click on the tab **CERTIFICATE**.
- Now click on the button **DOWNLOAD**. If necessary, you can also download the certificate by right-clicking on the button and then **Save as**.
- Go to the Thunderbird menu and click on **Options**.

## Certificate Installation

- Go to the Thunderbird menu and click on **Options**.

![tunderb-en01.png](https://eblocker.org/wp-content/uploads/docs/360002342674-tunderb-en01.png)

- Go to **Advanced**, choose **"Certificates"** and click on **View Certificates**.

![tunderb-en02.png](https://eblocker.org/wp-content/uploads/docs/360002342674-tunderb-en02.png)

- After the Certificate Manager opens, choose **"Authorities"**, click on **Import** and choose the eBlocker certificate from the downloads directory.

![tunderb-en03.png](https://eblocker.org/wp-content/uploads/docs/360002342674-tunderb-en03.png)

- Open the eBlocker certificate and make sure that the first checkbox **"This certificate can identify websites"** is selected. Confirm with **OK**.

![tunderb-en04.png](https://eblocker.org/wp-content/uploads/docs/360002342674-tunderb-en04.png)

- Confirm the Certificate Manager and the settings with **OK**.

The certificate is now inserted into the Thunderbird email application.