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.

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

E-Mail content displays as plain text instead of HTML-text

  • 4 balasan
  • 1 ada masalah ini
  • 1 paparan
  • Balasan terakhir oleh batengo

more options

Dear community,

in the past, I have noticed that a few e-mails - but not all - are displayed incorrectly as plain text instead of the usual HTML-text. This means that there is no formatting involved, e.g. the font art is not correct. As it seems, the issue occurs when the standard formatting options of e-mails are used by the senders. So if nothing is changed like the font size or colour. If I look at the e-mail on different e-mail programs, everything is alright. I have already ensured that the option View > Message Body As > Original HTML is enabled.

Thanks in advance for your advice. batengo

Dear community, in the past, I have noticed that a few e-mails - but not all - are displayed incorrectly as plain text instead of the usual HTML-text. This means that there is no formatting involved, e.g. the font art is not correct. As it seems, the issue occurs when the standard formatting options of e-mails are used by the senders. So if nothing is changed like the font size or colour. If I look at the e-mail on different e-mail programs, everything is alright. I have already ensured that the option View > Message Body As > Original HTML is enabled. Thanks in advance for your advice. batengo

Penyelesaian terpilih

Thunderbird has default display fonts for plain text. They are set in options.

Baca jawapan ini dalam konteks 👍 1

All Replies (4)

more options

If the sender sent email as a plain text email then that is all you are going to see. The colour of the text will be whatever you have set up to use. The default is black text and white background, but this may be different depending upon your settings and whether you use a userContent.css file.


You can check to see what is in the email source. Select the email so it displays in Message Pane and click on 'More' button located in the header area. select 'View source' from drop down list. It will open in a new window. All headers are displayed first followed by : Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit followed by content of email. If html has been included by sender it will be displayed below as: Content-Type: text/html; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit followed by html code and content.

If you have selected: View > Message Body As > Original HTML Then the Content-Type: text/html section is displayed, but if it is not present in email then Content-Type: text/plain information is displayed.

more options

Thanks for your answer!

If I understood you correctly, text written without formatting will just be displayed as plain text. But how is it then that in other e-mail programs the text is formatted e. g. with the font Calibri? Is there a similar option in Thunderbird?

Thanks in advance!

more options

Penyelesaian Terpilih

Thunderbird has default display fonts for plain text. They are set in options.

Diubah oleh Matt

more options

Perfect! I have now found the related options and could change the appearance.

Thanks for your help!