The malicious extension, FriarFox, snoops in on both Firefox and Gmail-related data. A newly uncovered cyberattack is taking control of victims’ Gmail accounts, by using a customized, malicious Mozilla Firefox browser extension called FriarFox. Researchers say the threat campaign, observed in January and February, targeted Tibetan organizations and was tied to TA413, a known advanced persistent threat (APT) group that researchers believe to be aligned with the Chinese state. The group behind this attack aims to gather information on victims by snooping in on their Firefox browser data and Gmail messages, said researchers. After installation, FriarFox gives cybercriminals various types of access to users’ Gmail accounts and Firefox browser data.