Firefox 139 Beta

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Discover the latest updates, features, and development insights on Firefox 139 Beta within the Windows and Microsoft ecosystem, helping IT professionals and developers stay ahead of browser innovation and security improvements. Stay informed on how this release influences compatibility, performance, and enterprise integration on Windows platforms.

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2:43 PM Updated

May 1, 2025 1 min read

Firefox 139 Beta Enhances Upload Speeds, PNG Transparency, and Multilingual Extension Support

Introduction Mozilla has unveiled Firefox 139 Beta, introducing a suite of enhancements aimed at refining user experience and performance. This beta version focuses on bolstering HTTP/3 upload...

browser enhancements browser features browser performance

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Firefox 139 Beta

Firefox 139 Beta Enhances Upload Speeds, PNG Transparency, and Multilingual Extension Support

Frequently Asked Questions

Windows Versions

Microsoft Services

Firefox 139 Beta

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Firefox 139 Beta Enhances Upload Speeds, PNG Transparency, and Multilingual Extension Support

Frequently Asked Questions