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Microsoft Internet Explorer Dips Below 70% Market Share

ID: defcfd98-df14-5785-817f-1f1eb3d6fbc7

STIX ID: report--defcfd98-df14-5785-817f-1f1eb3d6fbc7

Feed Name: Zscaler Security Research Blog

Date Published: 2025-04-02

Date Updated: 2026-05-01

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The article discusses recent browser market-share shifts (Microsoft Internet Explorer falling below 70%, Firefox rising above 20%) and the security consequences of a more heterogeneous browser ecosystem: greater resilience against a single exploit wiping out all users, but increased attacker interest in alternative browsers as their user bases grow. It warns that many niche browsers are merely UI shells over common engines (Trident, Gecko, WebKit, Presto), so using an obscure browser does not guarantee safety if the underlying engine is vulnerable, and advises users to research browser engine provenance when seeking security benefits.

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