The add-on allowing people to check web files for any malware (viruses, trojans, worms, adware, spyware and other unwanted things) inclusions. Install this plug-in to your browser, reload it. Then click the web file link by right mouse button and choose a "Check files with QArchive.org". Then follow web site instructions. The usual way: your file will be enqueued. Refresh the report page to get completete antivirus report. That will show you all web file's part checking and a summary as well. If you are a web master you can you the useful feature. Taking the code of received report and placed it on your web site you can inform people about a concrete file safety. The web forums code version exists as well. This plug-in works in all of Mozilla based browsers (not only in Firefox - Seamonkey, Netscape, Flock).