Firefox 134 enhances Windows hardware H.265 support and popup blocking features

Firefox 134 enhances Windows hardware H.265 support and popup blocking features

Firefox 134.0 Launches with Key Improvements and Enhanced Security Features

Mozilla has unveiled the stable version 134.0 of Firefox today, marking a significant update for users. Notably, the previous beta version attempted to make itself the default browser, but this stable release brings substantive enhancements that users will appreciate.

New Features in Firefox 134.0

This update introduces support for hardware-accelerated playback of HEVC (High-Efficiency Video Codec or H.265) on Windows systems. For context, Google Chrome integrated this feature back in 2022, showcasing Mozilla’s commitment to catching up with its competitors.

Additionally, users will notice a redesigned New Tab layout, which optimizes the browsing experience. Enhancements to Firefox’s pop-up blocker also aim to reduce unnecessary interruptions, allowing for smoother navigation.

Refreshed UI for Firefox New Tab option in version 134.0

Changelog Summary

The full change log reveals an array of new features and adjustments:

New Features

  • Support for touchpad gestures on Linux, enhancing kinetic scrolling control.

  • Enhanced video playback capabilities with HEVC support on Windows.

  • Expanded availability of Ecosia across multiple languages in Germany and selected European countries.

Significant Changes

  • Improved adherence to the model HTML specification for transient user activation, leading to a more relaxed approach in pop-up blocking.

  • The New Tab layout has been refreshed for users in the U.S. and Canada, with a focus on web search, shortcuts, and stories, while optimizing space for larger screens.

Security Enhancements

Alongside new features, Firefox 134.0 also addresses several security vulnerabilities, which are critical for maintaining user safety. The key security updates include:

  • CVE-2025-0244: Fixes a spoofing issue in the address bar for Firefox on Android.
  • CVE-2025-0245: Resolves a lock screen setting bypass vulnerability in Firefox Focus for Android.
  • CVE-2025-0246: Corrects another address bar spoofing issue for Android users.
  • CVE-2025-0237: Addresses potential attacks through the WebChannel APIs.
  • CVE-2025-0238: Fixes a use-after-free memory error occurring when breaking lines in text.
  • CVE-2025-0239: Rectifies an ALPN validation failure when redirection occurs.
  • CVE-2025-0240: Solves a compartment mismatch issue during JavaScript JSON module parsing.
  • CVE-2025-0241: Fixes memory corruption relating to JavaScript Text Segmentation.
  • CVE-2025-0242: Tightens memory safety in various Firefox and Thunderbird versions.
  • CVE-2025-0243: Addresses additional memory safety bugs across Firefox and Thunderbird versions.
  • CVE-2025-0247: Further memory safety improvements in Firefox and Thunderbird.

This latest version represents Mozilla’s dedication to enhancing both functionality and security, keeping user experience and safety at the forefront. To explore the new features and improvements in Firefox 134.0, you can visit the link below:

Source & Images

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