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

Thunderbird, Postbox

DOM Inspector

Open the DOM (Document Object Model) Inspector to view and manipulate the DOM tree.

Install DOM Inspector

Download DOM Inspector

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Download/Sync Now…

Runs the download and sync now tool, so that messages can be used when you go offline.

Install Download/Sync Now…

Download Download/Sync Now…

Compatibility: Thunderbird, Postbox SeaMonkey

Find Again

Find the next bit of text that matches your search.

Install Find Again

Download Find Again

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Find Previous

Find the previous bit of text that matches your search.

Install Find Previous

Download Find Previous

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Get Inbox

Change the currently selected folder to your Inbox.

Install Get Inbox

Download Get Inbox

Compatibility: Thunderbird, Postbox SeaMonkey

Get Themes

Open the Themes Manager to change your theme or install a new one. Only works in Firefox 1.5. Firefox 2 users should use the Add-ons Button.

Install Get Themes

Download Get Themes

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Go

Show the Go Menu

Install Go

Download Go

Compatibility: Thunderbird, Postbox SeaMonkey

Help

Show the Help Menu

Install Help

Download Help

Compatibility: Pale Moon 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

Insert

Show Insert Menu

Install Insert

Download Insert

Compatibility: Thunderbird, Postbox SeaMonkey