Thunderbird: Making a folder with new messages stand out

This post was written by eli on May 14, 2012
Posted Under: email,Linux

On Thunderbird 3.0.7, this little extra file turned the folder names with new mail red and bold:

(the “chrome” directory needs to be created)

$ cat ~/.thunderbird/sdf2k45i.default/chrome/userChrome.css
url(""); /* set default namespace to XUL */

/* Setting the color of folders containing new messages to red */

treechildren::-moz-tree-cell-text(folderNameCol, newMessages-true) {
 font-weight: bold;
 color: red !important;



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