The misbehaving Firefox add-ons were misusing an API that controls how Firefox connects to the internet.

Over the past two weeks, Mozilla's add-on review team has banned 197 Firefox add-ons that were caught executing malicious code, stealing user data, or using obfuscation to hide their source code.

IT security researchers have discovered a large-scale campaign with malicious Firefox add-ons. They empty crypto wallets.

The “FoxyWallet” malware campaign saw more than 40 malicious extensions impersonating legitimate crypto wallets on the ...

Over 40 fake Firefox extensions mimicking MetaMask, Coinbase, and other crypto wallets are stealing user credentials ...

More than 40 fake extensions in Firefox's official add-ons store are impersonating popular cryptocurrency wallets from ...

Security researchers have discovered malicious Firefox add-ons that used the names of known tools and games to trick users ...

Mozilla last night announced that two experimental Firefox add-ons, Master Filer and the Sothink Web Video Downloader version 4, infected victim PCs with Trojans when either add-on was installed.

Over 40 malicious Firefox extensions impersonating popular crypto wallets have been uncovered, putting digital assets at risk ...

Over 40 fake Firefox extensions mimicking crypto wallets like MetaMask and Coinbase have been flagged for crypto theft in an ...

A growing series of false cryptocurrency wallet extensions, collectively called "FoxyWallet", have made their way into the ...

Mozilla blocked malicious Firefox add-ons installed by roughly 455,000 users after discovering in early June that they were abusing the proxy API to block Firefox updates.