About

Open the about window. Useful for checking exactly what version you have installed.

Compatibility: Pale Moon Thunderbird, Postbox SeaMonkey
This button is a legacy add-on, and can not be ported to Firefox 57+.

Often used with:

about:about
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Toolbar Buttons

Toolbar Buttons is a button set for Firefox, Thunderbird. It is the largest set of buttons available for these application, boasting over 100 buttons for Firefox alone

Pastel SVG is an icon set based on the popular silk icons found as FamFamFam.com. It uses the same style, so some of the icons are almost identical. The goal of the project is to recreate the entire set in a full range of sizes while also adding many icons that we think the original set is missing.