Dr.Web Link Checker
for Safari (6.0 or higher)
Install (FREE Download)
After you click Install (FREE download), you will be prompted to open or to save the file. Click Open.
An installation confirmation window will appear. Press Install. Now the installation of the extension is completed.
Click on the gear image on the right from the address bar, select Settings-> Extensions. In the installed extensions list look for Dr.Web Link Checker Scans HTML links with Dr.Web Online Anti-Virus, highlight it and click Uninstall, then confirm this action by pressing the Uninstall button in the confirmation dialogue.