Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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

Thunderbird header pane color change

  • 2 replies
  • 0 have this problem
  • 106 views
  • Last reply by fhutt

fhutt
fhutt

I am running Windows 11 with Thunderbird V144 and the Windows Classic theme. I find the background colors of the Message List Pane and the Message Pane almost the same as background of the Header pane. I would like to change the background color of the Header Pane so that it stands out more. I looked on the internet and found some solutions to most other Header Pane features but not the background color. Most of those solutions were additions to the userChrome.css file that appear not to work on V144.

I would appreciate some help with this.

I am running Windows 11 with Thunderbird V144 and the Windows Classic theme. I find the background colors of the Message List Pane and the Message Pane almost the same as background of the Header pane. I would like to change the background color of the Header Pane so that it stands out more. I looked on the internet and found some solutions to most other Header Pane features but not the background color. Most of those solutions were additions to the userChrome.css file that appear not to work on V144. I would appreciate some help with this.

Chosen solution

Add this to userChrome.css (see pictures): 

#threadPaneHeaderBar{background-color: lightblue !important;}

#messageHeader{background-color: lightgreen !important;}
Read this answer in context 👍 0

All Replies (2)

sfhowes
sfhowes
  • Top 25 Contributor

Chosen Solution

Add this to userChrome.css (see pictures): 

#threadPaneHeaderBar{background-color: lightblue !important;}

#messageHeader{background-color: lightgreen !important;}
fhutt
fhutt Question owner

Thank you so much sfhowes. Just what I was looking for.

Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.