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For this purpose, the initial “Firefox requires a manual update” window is intercepted by a pop-up box, which requires user's authentication (username and password). Consequently, if the PC's owner clicks on Install Now button, soon he or she will notice a significant web browser's slowdown and increased number of pop-up and banner ads.Īlso, this scam technique is also used to extort people's credentials, namely username and password. The purpose of the “Firefox requires a manual update” virus is to trick people into installing potentially unwanted Firefox's extensions. * Increased protection against malware and viruses * Internet pages are automatically examined and possibly blocked * This update is required * Protect yourself immediately on the internet This update is required to ensure that you are protected on the Internet The original “Firefox requires a manual update” pop-up says: “Firefox requires a manual update” adware renders a JavaScript code to display a rather professional-looking platform, which contains an active download button and prompts people to install Firefox's update manually. Mozilla Firefox recently reported a fake update notification “Firefox requires a manual update.” Adware and programs usually cause this pop-ups, but quite frequently it may be triggered by third-party websites infected with malicious code. What is “Firefox requires a manual update” scam? Firefox Support officially reported the “Firefox requires a manual update” scam