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ЗакрытьShowThread 1.5
автор Günter Gersdorf
Highlights messages which belongs to the thread of the selected message
Об этом дополнении
In the add-on's settings, you can customize the highlight color. If the currently selected message is part of the thread, the text color will change instead (since Thunderbird has already highlighted the message as the current one). This color can also be customized.
You can also configure which action should trigger the thread highlight: context menu, keyboard shortcut, or every a simple click.