Thunderbird not displaying message content is mainly due to inappropriate View mode, a corrupted .msf file, a new add-on, or an incomplete syncing. The quickest solution is right-click the folder, select Properties, and click Repair Folder. If that fails, switch the view mode, delete unnecessary add-ons, or turn off the graphic acceleration.

This guide explains reasons for facing such kind of issues in Thunderbird and possible methods to get clear, numbered fixes that will probably solve this problem.

Table of Contents

Why Is Thunderbird Email Content Not Showing?

Thunderbird uses index files to list and download messages that are stored locally. When the process breaks or gets interrupted, Thunderbird email content stops showing even the message still exists. The possible reasons why the process breaks are given below–

  • Corrupted Folder– The most common cause to this problem is a damaged .msf index file. A software crash, quick shutdown, or sudden power cut can corrupt the file, which results in empty bodies or Thunderbird does not show email content.
  • Incorrect View Mode Settings– Thunderbird can display emails as original or simple HTML and Plain Text. If an email is built mostly from complex designs or images and simple HTML mode may not show the full content, resulting in a blank body.
  • Irrelevant add-ons or graphic acceleration– Third-party add-ons may not work well with the message pane. Even graphic acceleration in Thunderbird settings can also result in blank message body.
  • Incomplete syncing of IMAP– If your account uses IMAP server, headers may download first before body when you open the email. This can happen due to a weak internet connection or a server issue.
  • Antivirus or Firwall Intrusion– Some security softwares that scan or block the unwanted mail traffic can sometimes provide you messages that are not fully loaded, which you may confuse with Thunderbird not displaying message content issue.

How To Fix Thunderbird Not Displaying Message Content? 7 Easy Solutions

The methods to resolve ‘Thunderbird does not show email content’ issue are explained in order wise below.

Method 1: Change The Message Body View Mode

Thunderbird can show an email in 3 ways as discussed- original HTML, simple HTML, or plain text. If the mode does not match the email content form, it may result in an empty or blank message body. To fix it, follow the given steps-

  1. At first, Open the blank mail.
  2. Click View option and select Message Body As.
  3. After that, choose Original HTML first, then go for Plain text or simple HTML mode.
  4. If any View mode helps you resolve the issue, keep that mode On. If the issue still persists, start working on the next method.

Also read: You can also export your emails in various formats using SysTools Thunderbird Converter.

Method 2: Repair Folder Which Has The Issue

Thunderbird tracks every message using an index, that carries the location of that particular message. If that index is damaged or incorrect, Thunderbird does not showing email content accurately. Repairing the folder rebuilds the index without making any changes in the content.

  1. Start with right-clicking the folder that is facing the issue.
  2. Now, select Poperties from the drop-down menu.
  3. Click on Repair Folder and confirm by clicking on OK.
  4. Lastly, wait for the folder to refresh, which can take a few minutes or more depending upon the file size.

Note– For accounts with IMAP server, Thunderbird may re-download message data, so keep your internet connection stable ad active.

Method 3: Delete The .msf File (Index File)

When you delete the .msf index file, Thunderbird automatically creates a brand-new file. This often results in getting back a Thunderbird inbox that is not showing messages. Try this when the repairing method does not resolve the issue completely.

  1. Firstly, select Help from the menu (three horizontal lines on the top), and select Troubleshooting Information.
  2. Just under Application Basics, click Open Folder button which is next to Profile Folder option in the table. Now, close Thunderbird application completely.
  3. Open Mail folder (if using POP3 server) or ImapMail folder (if using IMAP), then your account folder.
  4. You will see files that end with .msf extension. Delete only those .msf file that matches the folder which is facing the problem.
  5. Now, you can restart Thunderbird.

Method 4: Disable Add-ons In Troubleshoot Mode

A defective add-on can affect the message block, resulting in blank or no content in message body. Disable or delete every add-on and check which one is causing the issue.

  1. Click on Help from the menu (three lines) and choose Troubleshoot Mode option and confirm by clicking Restart.
  2. Check your emails if still they are appearing blank.
  3. If the issue gets resolved, you can again go to Add-ons and Themes in Thunderbird add them.
  4. Add the add-ons one at a time and check if the problem returns, then ether update or remove the add-on.

Method 5: Check Graphic Acceleration Settings

Graphic acceleration helps Thunderbird draw the screen. Defective drivers can provide you half-blank or empty message body.

  1. Go to Settings from the menu (three lines) and search Performance option.
  2. Now, disable Use recommended performance settings by unticking it.
  3. After that, disable Use hardware acceleration option as well.
  4. Now you can restart the Thunderbird and check if the problem still persists.

Method 6: Check Offlline Mode And Synchronization Setting

Accounts with IMAP accounts, Thunderbird may download only headers first and the body content is fetched when you open the email.

  1. Open Account Settings option from the menu list and select your account that is currently facing the issue.
  2. In Synchronization & Storage option, enable Keep messages for this account option.
  3. Right-click the folder, select Properties option, and open Sychronization tab.
  4. Allow offline usage and finally click on Download Now.

Method 7: Update Thunderbird And Check Security Software

Older versions can contain issues or bug that may stop messages from loading, and anti-virus software can also interrupt the connection to your mail server.

  1. Go to Help from the menu and select About Thunderbird and install any pending or available update.
  2. Restart Thunderbird.
  3. If the problem continues, add Thunderbird to your antivirus exceptions, or pause email scanning to test for sometime.

What To Do When Nothing Works?

Your Thunderbird profile stores your settings, folders, and add-ons. If the issue ‘Thunderbird not displaying message content’ still persists, a clean and fresh profile can resolve this issue.

  1. Close Thunderbird.
  2. If on Windows, press Windows + R to see Run Command window, and type thunderbird.exe-p, and press Enter.
  3. Click Create Profile, fill the name column and finish.
  4. Start the Thunderbird with the new created profile and add your previous account again.

Also read: You can move complete Thunderbird Profile to a new computer using SysTools Thunderbird Import Wizard.

Conclusion

Fixing Thunderbird not displaying message content can be easy when its resolved with the right method. Review basic settings first, then move to the more complex repairs or re-add the account if the email content is still blank.
Make sure to backup Thunderbird emails before making any deeper repairs or changes so that if you make any mistake or enable any wrong settings, your emails are still safe with you.

FAQs

  1. Can I delete the .msf file in Thunderbird?
    Yes. As long as you delete only the .msf file and not the main files with the same name butno extension at the end. It is just an index that guides Thunderbird where the message is stored.
  2. Why is my email text not visible in Thunderbird ?
    Emails have their own colour theme, so light text can appear on light background, like white text on white background. Switch theme to a different mode by going to Settings and doing necessary under Language & Appearance block.
  3. How to take backup of my Thunderbird profile?
    You can backup your Thunderbird profile by going to Help from the menu (three lines) and selecting Troubleshooting Information. Now, open your profile folder and copy files to move them in any other location or a separate hard drive.