Firefox extension for virus checking
Friday
With the help of this Firefox extension you can easily check for viruses and all kinds of malicious programs any web link before it is opened, or any file before it is downloaded onto your computer. 
To scan a link or a file, you do not need to download and install Dr.Web Anti-virus onto your computer, nor download the file you want to open or save — the scan of the page or file you want to access will be performed on the servers of the Doctor Web Global Update system with the most up-to-date version of the Dr.Web scanner and latest updates of the virus definitions base. Depending on the size of the checked file, it will be scanned within several seconds and then you can open the page or download the file and never fear of a virus attack.
Download : Dr.Web anti-virus link checker
