From Eclipsepedia

Higgins uses number of browser extensions:

1. Higgins Embedded-Selector Extension for Firefox is used by the Firefox-Embedded Selector Solution. It includes a card selection UI implemented (embedded) within the extension itself.
2. A non-Higgins Firefox browser extension is used by the GTK_and_Cocoa_Selector_Solution. This extension launches either the GTK or the Cocoa Selector which presents its own UI.
3. Higgins Browser Extension for IE7 bundled as part of the RCP Selector Solution. It launches the RCP Selector which presents its own UI.
4. Higgins Browser Extension for Firefox is a light weight Firefox extension that launches external Identity Selector through Higgins Selector Selector. This extension also can launch Higgins external Identity Selectors (RCP Selector, AIR Selector and C++ Client Based Selector) directly.

Other extensions are also under development.

Links

• Higgins Home