The G Data CloudSecurity plugin works with both Mozilla Firefox and Internet Explorer, and is 100% compatible alongside any other installed antivirus or security suite software. The company’s products have outperformed competitors in protecting PCs against the widest range of malware and are 99% effective -- setting the precedent for antivirus software performance. Key features: Free plugin for Mozilla Firefox and Internet Explorer Extends existing security software to prevent access to malware and phishing websites Compatible with all other security products No impact on PC performance One-time installation, no updates required