30 July 2025

Introducing Check Links: an extension for Thunderbird

Check Links is a new extension for the Thunderbird email client. With Check Links, you can review the web addresses (URLs) of all hyperlinks in a draft email message before sending. Never send an email with broken or incorrect links again! 

Get started by clicking the Check Links button on the compose toolbar. 

Review each link one at a time with Message View.

Keep reading to learn more about Check Links, and how to get involved as a beta tester! 

Features

  • Choose how you want to review the links in your draft email. Use Message View to review the links one by one in a message preview. Or select Table View where you can review all of them at a glance. 
  • Check Links can also detect link placeholders in your email, allowing you to replace them with a proper hyperlink. 

Testers Wanted!

Check Links is in the beta testing phase, and is being made available to early adopters and enthusiasts who are keen on trying out the latest and greatest!

You can get the latest beta release from the Check Links page on the AE Creations website, where instructions on how to install into Thunderbird are provided. Please note that it's not yet available on the Add-ons for Thunderbird website.

Check Links is compatible with Thunderbird 128 and newer.

Report a Bug

An up-to-date list of known issues can be found in the Check Links project on GitHub.

If you find a bug or have an idea for an enhancement, you may file a bug report on GitHub. Please search the issues list first to confirm that your issue has not already been reported.

Help and Support

Questions and comments about Check Links should be posted to the AE Creations Help and Support forums, hosted on Groups.io.

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