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Mozilla Thunderbird

Open the developer tools

CtrlShiftI

Windows Desktop app Thunderbird on Windows and Linux

Practice this

To open the developer tools in Mozilla Thunderbird, press Ctrl + Shift + I. It is listed for Windows, and no Mac version is documented here.

Where it works: Anywhere

Where this comes from

Keyboard shortcuts - Thunderbird Help

Documentation checked on 2026-09-14. That is a documentation review, not a test run inside the application.

More Mozilla Thunderbird shortcuts

Show or hide the message pane F8
Close the window or tab Ctrl + W
Reopen the tab you closed Ctrl + Shift + T
Save the draft Ctrl + S
Send the message now Ctrl + Enter
Send the message later Ctrl + Shift + Enter
Show or hide the contacts sidebar F9
Show or hide the attachment pane Alt + M

See every Mozilla Thunderbird shortcut

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