Welcome to Thunderbird Add-ons.
Add extra features and styles to make Thunderbird your own.Close
About this Add-on
To undo highlighting, hold "Shift" + click the "Mark" button to reset the selected text to the document's background colour.
Quick colour selection by holding "Ctrl" + clicking the "Mark" button on windows computer.
Quick colour selection by holding "Command" + clicking the "Mark" button on Mac computer.
The currently active colour is displayed in the button icon.
(Important remark: If the Thunderbird option "Override the colours specified by the content with my selections above:" is set to "Always", the Add-on will not work.)