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

Thunderbird, Postbox

Plugins

Open the Plugin Manager to enable or disable or do any other needed tasks to any of your plugins.

Install Plugins

Download Plugins

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Remote Content

Opens the window to set exceptions for the loading of remote content

Install Remote Content

Download Remote Content

Compatibility: Thunderbird, Postbox SeaMonkey

Search Addresses

Open the advanced address search window.

Install Search Addresses

Download Search Addresses

Compatibility: Thunderbird, Postbox SeaMonkey

Tasks In View

Toggle the Task in View panel in Sunbird.

Install Tasks In View

Download Tasks In View

Compatibility: Thunderbird, Postbox SeaMonkey

Toggle menu bar

Toggle the menu bar. Don't put this button on the menu bar!

Install Toggle menu bar

Download Toggle menu bar

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Toggle Read

Toggle the Read status of the currently selected message.

Install Toggle Read

Download Toggle Read

Compatibility: Thunderbird, Postbox SeaMonkey

Toggle Tasks

Toggle the task bar between visible and hidden.

Install Toggle Tasks

Download Toggle Tasks

Compatibility: Thunderbird, Postbox SeaMonkey