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

Thunderbird, Postbox

Edit as New

Edit an email.

Install Edit as New

Download Edit as New

Compatibility: Thunderbird, Postbox SeaMonkey

Get Inbox

Change the currently selected folder to your Inbox.

Install Get Inbox

Download Get Inbox

Compatibility: Thunderbird, Postbox SeaMonkey

Message

Show the Message Menu

Install Message

Download Message

Compatibility: Thunderbird, Postbox SeaMonkey

Options Menu

Show the options menu in the compose mail window.

Install Options Menu

Download Options Menu

Compatibility: Thunderbird, Postbox SeaMonkey

Threads with Unread

View only the threads in the current folder that have unread messages.

Install Threads with Unread

Download Threads with Unread

Compatibility: Thunderbird, Postbox SeaMonkey

Create Filter

Create a message filter from the currently selected message.

Install Create Filter

Download Create Filter

Compatibility: Thunderbird, Postbox SeaMonkey

Watched Threads with Unread

View watched threads that have unread messages in them.

Install Watched Threads with Unread

Download Watched Threads with Unread

Compatibility: Thunderbird, Postbox SeaMonkey

Ignored Threads

View all the threads in the current folder that are set as ignored.

Install Ignored Threads

Download Ignored Threads

Compatibility: Thunderbird, Postbox SeaMonkey

Open in Conversation

Open the current message in a conversation tab

Install Open in Conversation

Download Open in Conversation

Compatibility: Thunderbird, Postbox SeaMonkey

Email Headers

Sets what headers are displayed for an open message.

Install Email Headers

Download Email Headers

Compatibility: Thunderbird, Postbox SeaMonkey