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

Thunderbird, Postbox

Return Receipt

Toggle Return Receipt on/off

Toggle the sending of a return receipt on and off.

Compatibility: Thunderbird, Postbox SeaMonkey

Toggle Toolbar

Toggle the Main Toolbar

Toggle the main toolbar from showing to hidden. Don't place it on the main toolbar, it is disabled then and will not work.

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Help

Open help documentation

Open the application help documentation.

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Hide Toolbars

Toggle visibility of all toolbars, except the main toolbar

Toggle the visibility of all toolbar, other then the main toolbar.

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Install

Install an extension or theme

Install an extension or theme file you have downloaded and stored on your hard drive. Middle clicking the button will open the window to control which sites can install extensions.

Installing Extensions and particularly themes that you have downloaded can be quite a trick. This button makes the process simple and hassle free.

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Page Colours

Toggle between the default and the site's page colours

Toggles between using the default colors (that tend to be easily readable) and the colors set by the web pages author.

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Passwords

Open Password Manager

Opens the password manager to view saved passwords

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Run Application

Run an external application

Runs an external application

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Status Bar

Toggle The Status Bar

Toggle the status bar from hidden to shown. Hide it to get the most out of your screen space, and show it when it really needed.

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Themes

Open Themes Manager

Open the themes manager to change you theme or install a new one.

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey