Who should use H.264 Stream Guard?

H.264 Stream Guard is a consumer product built for firefox users seeking hardware-accelerated H.264 video playback.

What platforms does H.264 Stream Guard run on?

H.264 Stream Guard runs on the web and embeddable surfaces.

Is H.264 Stream Guard still maintained?

Unverified. H.264 Stream Guard 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.

Who develops H.264 Stream Guard?

H.264 Stream Guard is developed by Byte.

How long has H.264 Stream Guard been around?

H.264 Stream Guard first shipped in 2026.

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H.264 Stream Guard

Name: H.264 Stream Guard
Author: Byte

mozilla.orgBrowser DevTools & extensions

H.264 Stream Guard is a Firefox browser extension that switches supported streaming platforms to native hardware-accelerated H.264 video. It is designed to improve video playback efficiency without materially affecting browser performance.

WebEmbeddableCloud-managed

Visit mozilla.org

Overview

6 features

H.264 Stream Guard sits in PulseGate's Browser DevTools & extensions category. It focuses on avoiding inefficient or incompatible video codecs that reduce streaming playback performance. H.264 Stream Guard is a consumer product aimed at firefox users seeking hardware-accelerated H.264 video playback. H.264 Stream Guard is available on the web and embeddable surfaces.

It is developed by Byte, and it first shipped in 2026. Key capabilities include codec switching, H.264 enforcement, and hardware acceleration. The interface is available in 32 languages, including Czech, German, and Greek.

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

Codec switching
H.264 enforcement
Hardware acceleration
Streaming optimization
Site permissions
Optional permissions

Built with & integrations

Runs on

BrowserEmbeddableCloud-managed

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed9 Sept · 01:53 UTC
H.264 Stream Guard verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about H.264 Stream Guard

What is H.264 Stream Guard?: H.264 Stream Guard focuses on avoiding inefficient or incompatible video codecs that reduce streaming playback performance. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use H.264 Stream Guard?: H.264 Stream Guard is a consumer product built for firefox users seeking hardware-accelerated H.264 video playback.
What platforms does H.264 Stream Guard run on?: H.264 Stream Guard runs on the web and embeddable surfaces.
Is H.264 Stream Guard still maintained?: Unverified. H.264 Stream Guard 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.
Who develops H.264 Stream Guard?: H.264 Stream Guard is developed by Byte.
How long has H.264 Stream Guard been around?: H.264 Stream Guard first shipped in 2026.
What languages does H.264 Stream Guard support?: The interface is available in 32 languages, including Czech, German, and Greek.

At a glance

Pricing: Paid · pricing page detected
Platforms: Web
First seen: 9 Sept 2026
Built for: Firefox users seeking hardware-accelerated H.264 video playback
Model: B2C
Solves: Avoiding inefficient or incompatible video codecs that reduce streaming playback performance.

Registered as

Firefox Add-ons: h-264-stream-guard

Developer

Byte

Index record

Indexed: 9 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 9 Sept 2026

Identity audit (13)

Slug: h-264-stream-guard-mozilla-org
Lifecycle state recorded: 9 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 9 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
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: 9 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/h-264-stream-guard

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