Innstillinger Customization Customize product appearance and functionality to suit your preferences. Alle All articles and threads Import and export settings Customization Add-ons, extensions, and themes På engelsk Message threading in Thunderbird - keep messages grouped by conversation Customize Date and Time formats in Thunderbird Display the Thunderbird menus and toolbar How to Customize the New Mail Sound userChrome.css and .js and userContent are unsupported Add Search Engine to Open Search Unified Toolbar