In Thunderbird how to hide the folder count indicator of unread emails?
Apr 7, 3:21pm

As of April 2026, there is still no built-in option in Thunderbird's settings to hide the folder count indicator for unread emails in the folder pane. This feature has been requested by users, but it remains unavailable in the default interface as of now.

However, you can achieve this by using a userChrome.css tweak or a third-party extension. One such extension is available on addons.thunderbird.net, which allows you to hide the unread email count numbers in the folder tabs.

If you prefer a CSS solution, you can add the following to your userChrome.css file:

css
.treechildren::-moz-tree-cell-text(unreadCount) { display: none !important; }

You may need to enable userChrome.css in Thunderbird's Config Editor (about:config) if it's not already enabled.

Would you like step-by-step instructions for either method?

Apr 7, 3:21pm

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