Email, Messaging, & Video Calls Email Read Emails in a Unified Inbox With Mozilla Thunderbird See all your messages on one screen Share Pin Email Print Henrik Sorensen / Getty images Email Yahoo! Mail Gmail By Heinz Tschabitscher Writer A former freelance contributor who has reviewed hundreds of email programs and services since 1997. our editorial process Heinz Tschabitscher Updated February 11, 2020 134 134 people found this article helpful You can easily configure Mozilla Thunderbird to display messages from all your email accounts on a single screen. Here's how. Cross-platform Thunderbird is free, open-source email software for desktop and laptop computers. The instructions here apply to Thunderbird version 68 but should be similar in other recent versions. Configure Thunderbird Open Thunderbird. Click View in the menu bar at the top of the screen. If you don't see a menu bar, press Alt+V to display it. Select Folders from the drop-down menu. Click Unified. All your email from all your accounts will now be grouped into your Inbox, Archives, and Trash folders, as appropriate. Should you decide not to use the unified view, select View > Folders > All from the menu bar.