h264ify is an open-source project built for firefox users who need H.264 YouTube playback.

Does h264ify have a free plan?

Yes — h264ify is free to use.

Is h264ify still active?

Unverified. h264ify has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to h264ify?

Similar projects tracked by PulseGate include Launch Control, pLang, and Zem-UtilityTools.

h264ify is developed by erkserkserks.

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h264ify

Name: h264ify
Author: erkserkserks

github.comBrowser DevTools & extensions

h264ify is an open-source Firefox extension that modifies YouTube playback to prefer H.264 video streams over VP8 and VP9. It is intended for users whose hardware or browser performs better with H.264 decoding.

FreeWebEmbeddablemacOSWindowsLinux

Visit github.com

Overview

5 features

h264ify sits in PulseGate's Browser DevTools & extensions category. It focuses on reducing YouTube playback compatibility and performance issues caused by VP8 or VP9 video streams. h264ify is an open-source project aimed at firefox users who need H.264 YouTube playback. It is available for free. It runs on the web, embeddable surfaces, macOS, Windows, and Linux.

Behind h264ify is erkserkserks. Key capabilities include H.264 playback, youTube integration, and VP8 blocking.

Summary written by a language model from the project’s public pages.

H.264 playback
YouTube integration
VP8 blocking
VP9 blocking
Firefox support

Built with & integrations

Runs on

BrowserEmbeddablemacOSWindowsLinux

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed7 Sept · 22:32 UTC
h264ify verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about h264ify

What does h264ify do?: H264ify focuses on reducing YouTube playback compatibility and performance issues caused by VP8 or VP9 video streams. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is h264ify for?: h264ify is an open-source project built for firefox users who need H.264 YouTube playback.
Does h264ify have a free plan?: Yes — h264ify is free to use.
What platforms does h264ify run on?: h264ify runs on the web, embeddable surfaces, macOS, Windows, and Linux.
Is h264ify still active?: Unverified. h264ify has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to h264ify?: Similar projects tracked by PulseGate include Launch Control, pLang, and Zem-UtilityTools.Launch Control pLang Zem-UtilityTools
Who makes h264ify?: h264ify is developed by erkserkserks.

At a glance

Pricing: Free
Platforms: Web
Languages: English
First seen: 7 Sept 2026
Built for: Firefox users who need H.264 YouTube playback
Model: Open source
Solves: Reducing YouTube playback compatibility and performance issues caused by VP8 or VP9 video streams.

Registered as

Firefox Add-ons: h264ify

Developer

erkserkserks

Index record

Indexed: 7 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 7 Sept 2026

Identity audit (13)

Slug: h264ify-github-com
Lifecycle state recorded: 7 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 7 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 7 Sept 2026
Canonical URL: https://github.com/erkserkserks/h264ify-firefox

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