FireCoin is a Firefox addon to facilitate BitCoin transactions, let you easily send money to other BitCoin users, without needing to open the BitCoin client.
The plugin lets you discover bitcoin addresses provided by the site owner in the header section. It also lets you select bitcoin addresses on pages, right-click on them and choose "Send Bitcoins". This makes it easy to send payments without opening the client.

Requirements:
* Firefox

The license of this software is Free, you can free download and free use this browser plug-ins software.