Home » Blog » Email Tips » What is New in Thunderbird 78

What is New in Thunderbird 78

Published By Raj
Debasish Pramanik
Approved By Debasish Pramanik
Published On January 25th, 2024
Reading Time 4 Minutes Reading
Category Email Tips

Recently, Thunderbird version 78 has been released and it is currently available for download for Windows, Mac, and Linux users. This is a major release of Thunderbird that contains several new features, major changes, and usability improvements.  Let us take you through the prominent updates of thunderbird 78.

Top Features of Mozilla Thunderbird Version 78

  • Introducing Dark Mode
  • Calendar and Tasks Integrated
  • Renovated Compose Window
  • Redesigned Windows for Account Setup and Account Central
  • Folder Icons and Colors Update
  • Minimize to Tray

Introducing Dark Mode

The craze about the dark mode is yet to become over and Thunderbird joins the list of applications with dark mode features. Thunderbird 78 will put less stress on your eyes once you enable the dark mode.  Needless to say that this mode will enhance the shiny look of Thunderbird.

The best thing about the dark mode of Thunderbird is that it is available even when the users are composing or reading emails. Thunderbird also takes operating system settings into account and works accordingly.

Calendar and Tasks Integrated

Now, it is time to say goodbye to calendars and Tasks add-ons like Lightning. Every Thunderbird 78 user will now have access to these features by default in Thunderbird as they have been integrated into this version. Now, users can expect that in near future, the calendar will come with additional functionalities such as the user experience and the interoperability of the calendar with Thunderbird email.

Renovated Compose Window

The redesigned compose window will let the users compose an email at a faster pace. In the compose window, users can easily find the features and start writing emails directly. The ids of the recipients are also listed in pill icons rather than taking a whole line for each recipient.

Redesigned Windows for Account Setup and Account Central

The “Account Setup window” and “Account Central tab” – both have been updated in this version of Thunderbird. With the newly designed layout, it has become easier for the users to find the relevant settings and have a better understanding of the info that is on display. The information about the Thunderbird project and Thunderbird version is also included in the Account Central tab.

Note: Account Central Tab is the one that appears when users select an existing account or do not have an account configured in Thunderbird.

Folder Icons and Colors Update

In the latest version of Thunderbird 78, users will get vector-style Folder icons. These icons will be more compatible with HiDPI monitors and the newly introduced dark mode. The categorization of the folders and color customization will be also feasible with the introduction of Vector icons.

 Minimize to Tray

Another significant inclusion in the Thunderbird 78 feature list is the option to minimize to tray. Earlier, Thunderbird users need to avail of this feature by installing additional add-ons, but not anymore. Now the feature comes as a built-in with version 78 of Thunderbird.

What to Expect in the Next Version Releases of Thunderbird

If these features are not enough, users have to wait a few more months as Thunderbird will unveil some new features like End-to-End Encrypted Email Support. In the next update, to be known as 78.2.1, Thunderbird will offer OpenPGP encryption that will ensure end-to-end encryption.

Now, when online communication privacy is facing a threat, this Thunderbird feature will surely rejoice the users. Now when you exchange emails without encrypting them, it becomes easy for government agencies, network admins, and email providers to access the email contents. This encryption will make sure that only the sender and recipient of the emails get access to the content of it.

Additional Info about Thunderbird 78

  • Users cannot upgrade to Thunderbird 78 from Thunderbird 68 or any previous versions. This version is only available for direct download from its official website thunderbird.net. The facility for an update from earlier versions will be provided in future releases.
  • Only the MailExtensions add-on is working on v78 of Thunderbird. All other add-ons are yet to be updated for the latest versions. So, it is normal to face issues with ImportExportTools NG Add-on.
  • OpenPGP functionality is disabled by default in the current version of Thunderbird 78. However, users can enable and help in testing through the guide in the wiki.

Note: Thunderbird Import Wizard is the best software that can easily import MBOX, EML, and Maildir files to Thunderbird. This software is compatible with all versions of Thunderbird including Thunderbird 78.

Download Tool Purchase Now


Thunderbird aims to improve the user experience and the release of version 78 which includes many exciting features, is proof of their commitment. Mozilla claimed that the shortcomings of this initial version release will be fixed in the next update.


By Raj

A technical analyst and a writer with innovative ideas when it comes to technology. Provides solutions, tips and tricks to get things done using technology.