single window

Safari plugin warns when closing multi-tab window.

Toggles window shadows on or off when you take screenshots.

Displays your keystrokes in a small floating window

Display font previews in window.

ShadowKiller removes window and menu shadows in MacOS X.

A full-featured PostgreSQL installation in a single package.

Convert a single page or an entire site from HTML to markdown.

Access Facebook with a single click.

Capture multiple screenshots into a single image.

Use a single iSight or other webcam with multiple applications.