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Researchers uncover a 5-year malware campaign using browser extensions on Chrome, Firefox and Edge, relying on hidden payloads and shared infrastructure.
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A sophisticated Chinese threat actor dubbed DarkSpectre has compromised 8.8 million users across Chrome, Edge, and Firefox through three distinct malware campaigns that have operated undetected for over seven years, researchers revealed today. The oper…
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A sophisticated malware campaign dubbed “GhostPoster” has compromised approximately 50,000 Firefox users by exploiting browser extension icons. Security researchers at Koi Security discovered that malicious actors are embedding hidden malwa…
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In March 2024, Mozilla said it was winding down its collaboration with Onerep — an identity protection service offered with the Firefox web browser that promises to remove users from hundreds of people-search sites — after KrebsOnSecurity revealed Onerep’s founder had created dozens of people-search services and was continuing to operate at least one of them. Sixteen months later, however, Mozilla is still promoting Onerep. This week, Mozilla announced their partnership with Onerep will officially end next month.
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Mozilla has announced a significant transparency initiative for its Firefox browser ecosystem, implementing mandatory data disclosure requirements for extension developers. Starting November 3rd, 2025, all newly submitted Firefox extensions must explic…
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Mozilla has released Firefox 142 to address multiple critical security vulnerabilities that could enable remote attackers to execute arbitrary code on affected systems. The Mozilla Foundation Security Advisory 2025-64, announced on August 19, 2025, det…
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