What does Auto-play do?

Automatically playing videos on websites that do not support video autoplay. It is catalogued under Browser DevTools & extensions on PulseGate.

Who is Auto-play for?

Auto-play is a consumer product built for firefox users who want automatic video playback.

Yes — Auto-play is free to use.

Is Auto-play still maintained?

Unverified. Auto-play 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 Auto-play?

Similar projects tracked by PulseGate include Video Auto-Pause, Disable AutoPlay, and Video Autoplay Blocker.

Who develops Auto-play?

Auto-play is developed by Simo.

When did Auto-play launch?

Auto-play first shipped in 2023.

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Auto-play

Name: Auto-play
Author: Simo

mozilla.orgBrowser DevTools & extensions

Auto-play is a Firefox browser extension that enables automatic playback of videos on websites that do not natively support it. It is intended for individual Firefox users and requests access to open tabs and Twitch data.

FreeWebEmbeddablemacOSWindowsLinux

Visit mozilla.org

1alternative

3features

2023since

Overview

3 features

Auto-play is a Browser DevTools & extensions project. Automatically playing videos on websites that do not support video autoplay. It is built as a consumer product for firefox users who want automatic video playback. Auto-play is free to use. It runs on the web, embeddable surfaces, macOS, Windows, and Linux.

Behind Auto-play is Simo, and it first shipped in 2023. Key capabilities include video autoplay, twitch support, and browser extension. The interface is available in 32 languages, including Czech, German, and Greek.

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

Video autoplay
Twitch support
Browser extension

Built with & integrations

Runs on

BrowserEmbeddablemacOSWindowsLinux

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed14 Sep · 05:44 UTC
Auto-play verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Auto-play

What does Auto-play do?: Automatically playing videos on websites that do not support video autoplay. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Auto-play for?: Auto-play is a consumer product built for firefox users who want automatic video playback.
Is Auto-play free?: Yes — Auto-play is free to use.
What platforms does Auto-play run on?: Auto-play runs on the web, embeddable surfaces, macOS, Windows, and Linux.
Is Auto-play still maintained?: Unverified. Auto-play 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 Auto-play?: Similar projects tracked by PulseGate include Video Auto-Pause, Disable AutoPlay, and Video Autoplay Blocker.Video Auto-Pause Disable AutoPlay Video Autoplay Blocker
Who develops Auto-play?: Auto-play is developed by Simo.
When did Auto-play launch?: Auto-play first shipped in 2023.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users who want automatic video playback
Model: B2C
Solves: Automatically playing videos on websites that do not support video autoplay.

Registered as

Firefox Add-ons: auto-play

Developer

Simo

Index record

Indexed: 14 Sep 2026
Lifecycle: Alive
Last seen: 14 Sep 2026

Identity audit (13)

Slug: auto-play-mozilla-org
Lifecycle state recorded: 14 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 14 Sep 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: 14 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/auto-play

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