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Microsoft Edge to block malicious sideloaded extensions

ID: 58cd1ec6-06e3-5ec7-87b4-81b1022889bd

STIX ID: report--58cd1ec6-06e3-5ec7-87b4-81b1022889bd

Feed Name: Bleeping Computer

Date Published: 2025-09-26

Date Updated: 2026-04-20

Author: Sergiu Gatlan

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Microsoft announced a new Microsoft Edge capability to detect and revoke malicious sideloaded extensions, slated for global rollout in November to standard multi-tenant environments, alongside recent security enhancements including tighter developer account controls, extension performance warnings, an AI-powered scareware blocker for tech support scams, HTTPS-First Mode, and automatic discarding of sleeping tabs.

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