Who is SpeedMaster for?

SpeedMaster is a consumer product built for firefox users who watch online videos.

Does SpeedMaster have a free plan?

Yes — SpeedMaster is free to use.

What platforms does SpeedMaster run on?

SpeedMaster runs on the web and embeddable surfaces.

Is SpeedMaster still active?

Unverified. SpeedMaster 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 are alternatives to SpeedMaster?

Similar projects tracked by PulseGate include Media Speed Up, Video Speed Wizard, and Streaming Speedup.

Who develops SpeedMaster?

SpeedMaster is developed by HC.

How long has SpeedMaster been around?

SpeedMaster first shipped in 2023.

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SpeedMaster

Name: SpeedMaster
Author: HC

mozilla.orgVideo & media players

SpeedMaster is a Firefox extension that removes standard playback-speed limits on video websites such as YouTube and TikTok. It lets users set custom speeds and add quick-access buttons for frequently used settings.

FreeWebEmbeddable

Visit mozilla.org

Overview

5 features

SpeedMaster sits in PulseGate's Video & media players category. It focuses on removing playback-speed limits and making custom video speeds easier to control across websites. SpeedMaster is a consumer product aimed at firefox users who watch online videos. SpeedMaster costs nothing to use. It ships for the web and embeddable surfaces.

Behind SpeedMaster is HC, and it first shipped in 2023. Among its 5 catalogued features are custom playback speeds, speed presets, and quick-access buttons. The interface is available in 32 languages, including Czech, German, and Greek.

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

Custom playback speeds
Speed presets
Quick-access buttons
Video speed control
Multi-site support

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed12 Sept · 03:39 UTC
SpeedMaster: Custom Playback Speed for Videos verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about SpeedMaster

What is SpeedMaster?: SpeedMaster focuses on removing playback-speed limits and making custom video speeds easier to control across websites. It is catalogued under Video & media players on PulseGate.
Who is SpeedMaster for?: SpeedMaster is a consumer product built for firefox users who watch online videos.
Does SpeedMaster have a free plan?: Yes — SpeedMaster is free to use.
What platforms does SpeedMaster run on?: SpeedMaster runs on the web and embeddable surfaces.
Is SpeedMaster still active?: Unverified. SpeedMaster 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 are alternatives to SpeedMaster?: Similar projects tracked by PulseGate include Media Speed Up, Video Speed Wizard, and Streaming Speedup.Media Speed Up Video Speed Wizard Streaming Speedup
Who develops SpeedMaster?: SpeedMaster is developed by HC.
How long has SpeedMaster been around?: SpeedMaster first shipped in 2023.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users who watch online videos
Model: B2C
Solves: Removing playback-speed limits and making custom video speeds easier to control across websites.

Registered as

Firefox Add-ons: speedmaster

Developer

Index record

Indexed: 12 Sept 2026
Lifecycle: Alive
Last seen: 12 Sept 2026

Identity audit (13)

Slug: speedmaster-custom-playback-speed-for-videos-mozilla-org
Lifecycle state recorded: 12 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 12 Sept 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
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: 12 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/speedmaster

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