Similarly, if you select text while you are reading a message, the Copy shortcut is available, but not the Cut or Paste shortcuts (because while it makes sense to copy text from a message you are reading, it doesn't make sense to paste text into or cut text from a message you are reading).
For example, when a message is selected in the message list, the Cut, Copy and Paste keyboard shortcuts are disabled (because it doesn't make sense to cut and paste text into the message list). That is, they vary according to the area of the Thunderbird interface that is currently "active". In Thunderbird, keyboard shortcuts are context sensitive. 2 Customize or disable keyboard shortcuts.The accessibility settings and keyboard shortcuts will appear. Click your profile picture then Settings.You can view all keyboard shortcuts in your Accessibility settings. Ctrl+Shift+C: Call highlighted phone number.Command(⌘)+K: Jump to chat with someone.Command(⌘)+W: Prompt to End or Leave Meeting.Ctrl+\: Toggle the Always Show meeting controls option in General settings.Ctrl+Option+Command+H: Show/hide meeting controls.Command(⌘)+Shift+D: Enable/disable dual monitor mode.Command(⌘)+Shift+M: Switch to minimal window.