It allows users to search files, URLs, and contacts on their computer, as well as performing actions on the results.

[3] Like other Google products such as the Chrome browser, QSB is open-source software.

In the case of QSB, this includes plugin validation, auto-update, and Google-branded icons.

Later it became a fully open source product, and just called Quick Search Box.

[4] In Mac OS X Snow Leopard, QSB has replaced Google Desktop.