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How to Convert Thunderbird Email to HTML? Quick Guide

Admin ~ February 20, 2025 ~ 5 Minutes Reading

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Thunderbird is an open-source email client known and it is specially known for flexibility and customization options. While it efficiently manages emails, users often need to convert Thunderbird emails to HTML as its portable and widely accessible format without requiring an email client. Due to this, in this guide, we will explain all researched methods to export Thunderbird emails to HTML quickly, both manually and using a Thunderbird Converter.

HTML stands for HyperText Markup Language is a standard format that allows you to access it from any web browser without installing an email client. By Converting Thunderbird Emails to HTML users can access emails in any browser, preserve formatting, links and images, easily share and archive emails, and edit email content using Text or HTML editors when required.

Purpose of Export Thunderbird Emails to HTML

  • It retains the original structure, font, colors and links of emails.
  • HTML emails can be opened in any web browser without requiring specialized software.
  • Unlike Thunderbird MBOX or EML formats, HTML files can be viewed or accessed on any device.
  • HTML allows embedded images, links and styling for better readability.
  • It helps in transferring emails to web based platforms.
  • HTML emails can be indexed by search engines and used for blogs, knowledge bases or reports.

How to Convert Thunderbird Email to HTML using Thunderbird to HTML Converter?

If you are required to export batch numbers of emails from Thunderbird or have bulk Thunderbird profiles. So, we suggest you choose Thunderbird to HTML Converter as it allows you to convert multiple Thunderbird profiles or any numbers of Thunderbird emails at one shot without facing any challenges. This software has been a completely tried and tested utility and also offers fully maintained results without affecting any single attribute.

Follow the steps to Convert Thunderbird Email to HTML

  1. Download and open “Thunderbird to HTML Converter” on your system.Run Thunderbird to HTML Converter
  2. Click on “Convert configured Thunderbird mailboxes” and press on Next.Select Convert configured Thunderbird mailboxes data
  3. Preview to select “Thunderbird mailbox folders” as you want to convert.Select Thunderbird mailbox folders
  4. Choose “HTML file” in the several list of select saving options.Select HTML option
  5. Browse destination path and select “File naming options”.Select file naming options
  6. Select advanced filter and press Next to start “Convert Thunderbird Email to HTML”.Start Convert Thunderbird email to HTML

Epitome Elements of Thunderbird to HTML Converter

  • This software allows to convert Thunderbird to PDF, PST, EML, MBOX, and 28+ select saving options.
  • You can also use filter options to convert specific Thunderbird mailbox data on specific date ranges such as sender blank address, receiver blank address, subject, date range and many more.
  • It is specially designed with advanced algorithms to be easily operated by any type of user, whether they are technically expert or have limited technical knowledge.
  • With this software, you can also migrate Thunderbird to Outlook, Gmail, Apple Mail, Microsoft 365 and many more with this application.
  • This software can auto-detect Thunderbird profile or you can also manually select Thunderbird files or folders to convert.

How to Export Thunderbird Emails to HTML Manually?

If you want to export a few or specific emails from Thunderbird then verify that your profile is configured correctly from where you want to export. Then, follow the instructions as we have shared below:

  1. Launch “Mozilla Thunderbird” on your system.Launch Thunderbird
  2. Navigate to the “folder containing emails” as you want to convert.Select Thunderbird email
  3. “Select emails” by CTRL while clicking.
  4. Right-click on the chosen Emails and hit the “Save As” option.Select Save As option
  5. Select file type as “HTML” and press on Save button to start “Converting Thunderbird email to HTML”.Choose HTML as file type

Shortcomings of Manual Methods

  • It doesn’t allow exporting attachments with emails.
  • You must needed to select emails manually.
  • Time consuming for bulk email conversion.
Read here: Convert Thunderbird Emails to MHT

Frequently Raised Concerns about Convert Thunderbird Email to HTML

How to create an HTML email in Thunderbird?

To compose an HTML email in Thunderbird, go to compose message and click on Select options and click on Sending format and press on only HTML.

Why does Mozilla no longer support Thunderbird?

Mozilla stopped supporting directly Thunderbird as it main focus on Firefox but Thunderbird continuously running under Thunderbird Council, funding by donations and volunteering offers continuously development and regular updates.

Is Thunderbird safe in 2025?

Yes, Thunderbird remains secure in 2025 with regular updates, end-to-end encryption and open PGP Support. It offers spam filtering and phishing protection. However, users should keep Thunderbird updated and enable Two-step verification for maximum security.

Let’s know: Migrate Thunderbird emails to Google Workspace Account

Overall Reflection

In this blog post, we have explained the process to convert Thunderbird emails to HTML manually and using the Thunderbird to HTML Converter. Exporting Thunderbird emails to HTML is a common query among users, so we have prepared this tutorial to help perform the process using either method. Both have their own benefits as manual value for selective emails conversion or Thunderbird to HTML Converter has been specially developed for bulk conversion quickly.