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Thunderbird keyboard shortcut for mark message read/unread doesn't work.

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Phil Reinie
Phil Reinie
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The keyboard shortcut to mark a message as read or mark it as unread is "M". On Windoze (11) the Ctrl key is supposed to be the keyboard shortcut activator, but when I type Ctrl+m (lowercase) a new message window pops up.

If I use Ctrl+M (capital M) the message disappears. I'm not sure where it goes, I didn't see it in the Trash, however Ctrl+z (lowercase) restores the message to the message list.

I searched Thunderbird settings to see how to modify or create keyboard shortcuts, but shortcut and keyboard gave zero results.

How do I restore or set Ctrl+m to mark messages read/unread? (I did not modify any keyboard shortcut.)

The keyboard shortcut to mark a message as read or mark it as unread is "M". On Windoze (11) the Ctrl key is supposed to be the keyboard shortcut activator, but when I type Ctrl+m (lowercase) a new message window pops up. If I use Ctrl+M (capital M) the message disappears. I'm not sure where it goes, I didn't see it in the Trash, however Ctrl+z (lowercase) restores the message to the message list. I searched Thunderbird settings to see how to modify or create keyboard shortcuts, but shortcut and keyboard gave zero results. How do I restore or set Ctrl+m to mark messages read/unread? (I did not modify any keyboard shortcut.)

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Matt
Matt
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There is no capacity to change Thunderbird shortcuts.

Ctrl+M is a new message and has been for about 15 years, perhaps always. ALt+M is the message menu

Simply pressing the unadorned M key when a message is selected in the list toggle the read / unread status as advertised.


Phil Reinie said
If I use Ctrl+M (capital M) the message disappears. I'm not sure where it goes

So that would be Ctrl+shift+ M or Move/Copy message to previous target folder Again

I didn't see it in the Trash, however Ctrl+z (lowercase) restores the message to the message list.

That would be undo.

Please see https://support.mozilla.org/en-US/kb/keyboard-shortcuts-thunderbird

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