These are a ready make selection of some of the most popular buttons from the Custom Toolbar Button Maker

Thunderbird, Postbox

Search Addresses

Open Addresses Search

Open the advanced address search window.

Compatibility: Thunderbird, Postbox SeaMonkey

Skip Trash

Delete message with out sending it to the Trash

Delete a message with out sending it to the Trash. This will completely remove the message so that it can not be recovered.

Compatibility: Thunderbird, Postbox SeaMonkey

Archive Thread

Send the Selected Thread to the Archive

Send the Selected Thread to the Archive

Compatibility: Thunderbird, Postbox SeaMonkey

Copy Email

Copy Email Address to Clipboard

Copy the email address of the currently open email the the clip board.

Compatibility: Thunderbird, Postbox SeaMonkey

Create Filter

Create filter from message

Create a message filter from the currently selected message.

Compatibility: Thunderbird, Postbox SeaMonkey

Delete Events

Delete Selected Events

Delete an event.

Compatibility: Thunderbird, Postbox SeaMonkey

Delete Tasks

Delete Selected Tasks

Delete a task.

Compatibility: Thunderbird, Postbox SeaMonkey

Edit Draft

Edit Saved Draft or Message

Edit a message that you have saved as a draft.

Compatibility: Thunderbird, Postbox SeaMonkey

Forward As Attachment

Forward message as an attachment

Forward the current message as an attachment.

Compatibility: Thunderbird, Postbox SeaMonkey

Forward Inline

Forward message as part of the email

Forward the current message as part of the email.

Compatibility: Thunderbird, Postbox SeaMonkey