If you are a frequent user of virustotal service, you might find useful as I did the firefox plugin they have to interact with their service. It allows to scan suspicious links, scan downloads before storing them, scan websites being displayed and search for a file/url report. Saves time to use their service.

Download it here. More information at http://www.virustotal.com/advanced.html#browser-addons

-- Manuel Humberto Santander Peláez | http://twitter.com/manuelsantander | http://manuel.santander.name | msantand at isc dot sans dot org