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Adjust font size and color of email list (inbox; Posteingang) and message header in Thunderbird 68
/* Thunderbird 68 has changed its architecture.
Unfortunately, many great themes and plugins are not working anymore.
The font size of the message list, where the emails of your inbox is listed, is way too small.
The standard and dark mode is a bit too dark.
You can easily fix that:
1. Search for your profile.
-> In Linux, you will find that unter ~[home]/.thunderbird/<Profile name - usually quite cryptical>/
-> In Windows: C:\Users\<Windows user name>\AppData\Roaming\Thunderbird\Profiles\<Profile name>\
2. Go to the folder and create a new folder with the following name: chrome
3. Copy the file userChrome.css into this folder (chrome)
4. Restart Thunderbird 68 - that's it
What this small files will fix/change:
1. Font size of the listed emails in your inbox will be increased.
2. Unread messages are listed in warm orange
3. The buttons in the message header will also be in warm orange (background)
4. The message header - where you have the main information: from, subject, etc - is also displayed in a bigger font
/* Change font-size of email list */
.tree-rows {
font-size: 12px !important;
/* Set Line Spacing In Thread Pane */
#threadTree > treechildren::-moz-tree-row {
height: 24px !important; }
#threadTree treechildren::-moz-tree-cell-text(unread) {
color: #d78a57 !important;
font-size: 13px !important; }
/* :::::::::::: Message Header :::::::::::: */
/* This sets the background and text color of the buttons in Thunderbird 68 */
#header-view-toolbox {
background : #d78a57 !important; -moz-appearance: none !important;
font-size: 9pt !important;
color: black;
margin-bottom: 15px;
margin-top: 10px;
margin-right: 10px;
padding-bottom: 3px;}
/* This sets the font-size of the text in the message header */
#msgHeaderView {font-size: 11pt !important; }
/* This sets makes the subject line appearing bold */
#expandedsubjectBox .headerValue,
font-weight:bold !important;}
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