# Firefox 156 Available With Its Built-In PDF Viewer Starting Up To 45% Faster

DevFeed: [Firefox 156 Available With Its Built-In PDF Viewer Starting Up To 45% Faster](<https://devfeed.tech/articles/firefox-156-available-with-its-built-in-pdf-viewer-starting-up-to-45-faster-17443.md>)

Original publisher: [Read original article](<https://www.phoronix.com/news/Firefox-156>)

Author: Michael Larabel

Published: 2026-09-14T15:09:09Z

Content type: news

Language: en

Sources: [Phoronix](<https://devfeed.tech/sources/phoronix.md>)

Topics: [Firefox](<https://devfeed.tech/topics/firefox.md>), [pdf](<https://devfeed.tech/topics/pdf.md>), [Mozilla](<https://devfeed.tech/topics/mozilla.md>), [Linux](<https://devfeed.tech/topics/linux.md>), [Nvidia](<https://devfeed.tech/topics/nvidia.md>)

Tags: [cpu](<https://devfeed.tech/tags/cpu.md>), [desktop-linux](<https://devfeed.tech/tags/desktop-linux.md>), [firefox](<https://devfeed.tech/tags/firefox.md>), [history](<https://devfeed.tech/tags/history.md>), [linux](<https://devfeed.tech/tags/linux.md>), [linux-benchmarking](<https://devfeed.tech/tags/linux-benchmarking.md>), [linux-hardware-benchmarks](<https://devfeed.tech/tags/linux-hardware-benchmarks.md>), [linux-hardware-reviews](<https://devfeed.tech/tags/linux-hardware-reviews.md>), [linux-how-to](<https://devfeed.tech/tags/linux-how-to.md>), [linux-performance](<https://devfeed.tech/tags/linux-performance.md>), [linux-server-benchmarks](<https://devfeed.tech/tags/linux-server-benchmarks.md>), [memory](<https://devfeed.tech/tags/memory.md>), [mozilla](<https://devfeed.tech/tags/mozilla.md>), [nvidia](<https://devfeed.tech/tags/nvidia.md>), [open-source-graphics](<https://devfeed.tech/tags/open-source-graphics.md>), [pdf](<https://devfeed.tech/tags/pdf.md>), [performance](<https://devfeed.tech/tags/performance.md>), [phoronix](<https://devfeed.tech/tags/phoronix.md>), [phoronix-test-suite](<https://devfeed.tech/tags/phoronix-test-suite.md>), [release](<https://devfeed.tech/tags/release.md>), [ubuntu-benchmarks](<https://devfeed.tech/tags/ubuntu-benchmarks.md>), [ubuntu-hardware](<https://devfeed.tech/tags/ubuntu-hardware.md>), [update](<https://devfeed.tech/tags/update.md>), [vulkan](<https://devfeed.tech/tags/vulkan.md>)

## AI overview

Firefox 156 is available with a built-in PDF viewer that starts up up to 45% faster. The release also improves memory and CPU usage when displaying large scaled-down JPEG images and includes several fixes. Vulkan Video decoding for newer NVIDIA GPUs remains limited to nightly builds.

## Source excerpt

Mozilla today published their Firefox 156.0 release binaries ahead of the official Tuesday announcement...