TB 68.5 Colors

Discussion of general topics about Mozilla Thunderbird
Posts: 243
Joined: October 23rd, 2011, 11:49 am

Post Posted February 24th, 2020, 9:51 am

I need to change the TB colors so it is easy on the eyes. When I bring up the options, it is black qn white. I need to flip that. Can I? Thanks.


User avatar
Posts: 46673
Joined: July 30th, 2003, 5:06 pm

Post Posted February 24th, 2020, 2:36 pm

The built-in dark and light themes don't seem to effect that. I tried Monterail Full Dark 2 for TB>68 but it doesn't do what you want. Its always black text on a white background. I assume you need to use CSS in ..\chrome\userChrome.css to change that windows colors.

See viewtopic.php?p=14845870#p14845870

Posts: 3835
Joined: February 3rd, 2009, 6:29 pm

Post Posted February 24th, 2020, 5:01 pm

Try this:

Code: Select all
/* Thunderbird userContent.css */

@-moz-document url-prefix("about:preferences"),
url-prefix("chrome://messenger/content/preferences/aboutPreferences.xul") {
  :root {
    --in-content-page-background: orange !important;
    --in-content-page-color: red !important;
    --in-content-categories-background: pink !important;
    --in-content-text-color: green !important;


You can view the source of the aboutPreferences.xul and *.css pages using the error console.

i.e. Tools > Developer Tools > Error Console (Ctrl+Shift+J)

Code: Select all
(function () {
  var urls = ["chrome://messenger/content/preferences/aboutPreferences.xul",
  for (var i = 0; i < urls.length; i++) {
    document.getElementById("tabmail").openTab("contentTab", {
      contentPage: "view-source:" + urls[i],

Return to Thunderbird General

Who is online

Users browsing this forum: No registered users and 1 guest