This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

Thunderbird corrupts forwarded messages frequently

  • 1 resposta
  • 1 has this problem
  • 1 view
  • Last reply by jbcressm

jbcressm
jbcressm
more options

Hi there,

I'm using Thunderbird version 78.3.2 which appears to be the latest version and ever since updating from I'm not sure which version, I've been having frequent issues with forwarded emails. Often the recipient of the forward complains that they can't see the contents of the forward because it is missing. I believe I have isolated this to Thunderbird corrupting some parts of the original email as it forwards it.

I've attached part of the HTML source of one of the messages I've had a problem with. I can see that in the original message that I received there is a proper style block with the html comment code

Hi there, I'm using Thunderbird version 78.3.2 which appears to be the latest version and ever since updating from I'm not sure which version, I've been having frequent issues with forwarded emails. Often the recipient of the forward complains that they can't see the contents of the forward because it is missing. I believe I have isolated this to Thunderbird corrupting some parts of the original email as it forwards it. I've attached part of the HTML source of one of the messages I've had a problem with. I can see that in the original message that I received there is a proper style block with the html comment code <!-- -- >properly enclosing a number of styles. However in the code that is received after I forward this in Thunderbird, there is partially missing styles and the close tag of -- > is not there. This is then viewed by some mail clients as a comment that never closes which causes all content to appear missing. Interestingly, both Thunderbird and Microsoft Outlook Pro Plus ignore this error and display things ok but I've been able to see the missing content in multiple mobile email clients I have tested (Blackberry Hub, Samsung stock email app, gmail app - all on Android OS) Why is Thunderbird doing this? Is there something I can do to fix this or is this a bug that needs to be fixed in an update. Thanks!
Capturas de pantalla anexas

All Replies (1)

jbcressm
jbcressm Question owner
more options

So apparently when I put in the tags for html comments, this commented out my post too..... so here's the rest of my post without the comment tags:

"properly enclosing a number of styles. However in the code that is received after I forward this in Thunderbird, there is partially missing styles and the close tag is not there.

This is then viewed by some mail clients as a comment that never closes which causes all content to appear missing. Interestingly, both Thunderbird and Microsoft Outlook Pro Plus ignore this error and display things ok but I've been able to see the missing content in multiple mobile email clients I have tested (Blackberry Hub, Samsung stock email app, gmail app - all on Android OS)

Why is Thunderbird doing this? Is there something I can do to fix this or is this a bug that needs to be fixed in an update.