Coinbase Users Alert: Fake Crypto Wallet Extensions Found on Firefox Store

A recent report by Koi Security has uncovered over forty counterfeit browser extensions on Mozilla's Firefox store, impersonating popular cryptocurrency wallets such as MetaMask, Coinbase, and Trust Wallet. These malicious plugins, which have been active since at least early 2025, use authentic branding and fake five-star reviews to lure unsuspecting users. Hidden JavaScript modules within these extensions are designed to steal private keys and recovery phrases, posing a significant threat to crypto investors. The discovery highlights the ongoing risks in the digital asset space and underscores the need for heightened vigilance when downloading wallet extensions. As of July 2025, these fraudulent plugins remain active, prompting calls for stricter vetting processes on browser extension stores.

Fake Crypto Wallet Extensions Pose Threat on Firefox Store

Over forty counterfeit browser extensions mimicking legitimate cryptocurrency wallets like MetaMask, Coinbase, and Trust Wallet remain active on Mozilla's Firefox store, according to a July 2025 report by Koi Security. These malicious plugins, disguised with authentic branding and boosted by fabricated five-star reviews, steal private keys and recovery phrases through hidden JavaScript modules.

The campaign, active since at least April 2025, abuses Firefox's permission system to harvest credentials while evading automated security scans. Researchers note new fraudulent extensions continue appearing weekly, with Russian-linked actors suspected behind the operation. The discovery highlights persistent security gaps in browser extension stores despite repeated warnings about crypto-draining malware.

Massive Whale Transfer Sparks Buzz as Bitcoin Eyes New ATH

Bitcoin trades NEAR $109,100, flirting with recent peaks above $110,300 as institutional inflows and whale activity fuel speculation of a breakout. The cryptocurrency has shown modest volatility, oscillating between $108,800 and $110,550 in the past 24 hours, while weekly gains stand at 1.4%.

Spot Bitcoin ETFs, particularly Fidelity's FBTC, have driven renewed institutional interest, attracting over $400 million in fresh capital. On-chain data reveals heightened whale movements, including the minting of 200 million USDC and a 300 million transfer to Coinbase. Tether's treasury minted 1 billion USDT, signaling potential market-moving liquidity shifts.