When you are using Firefox, you might sometimes want to open a tab in Chrome. The Open in Chrome addon makes this simple. Just install the addon and to open the current tab in Chrome go to Tools > Open in Chrome > Open current tab in Chrome. The first time you use it, you need to indicate where to find the Chrome binary, but after that it just works. This addon could possibly be used to launch other browsers or tools with the current URL too.
Tried with: Open in Chrome 1.5.3, Firefox 29.0 and Ubuntu 14.04