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

Thunderbird, Postbox

Cookie Exceptions

Open the Cookie Exceptions dialog

Open the cookie exceptions dialog.

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Cookie Manager

Opens the cookie manager for the current web page.

Opens the cookie manager for the current web page. On middle click opens in a new tab.

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Delete Events

Delete Selected Events

Delete an event.

Compatibility: 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

Next Message

Get Real Next Message

Get the next message. Unlink the default Thunderbird buttons this just go to the next in the list, or if shift is pressed, the next unread.

Compatibility: Thunderbird, Postbox SeaMonkey

Not Junk

Mark the selected messages as not junk

Mark the selected messages as Not Junk.

Compatibility: Thunderbird, Postbox SeaMonkey

Tasks In View

Toggle Tasks in View

Toggle the Task in View panel in Sunbird.

Compatibility: 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

View Menu

Show the view menu

Show the view menu.

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey

Codefisher

Open Codefisher.org

Opens various pages of the Codefisher.org website.

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey