Who should use Subflix?

Subflix is a consumer product built for netflix viewers learning languages.

Does Subflix have a free plan?

Yes — Subflix is free to use.

What platforms does Subflix run on?

Subflix runs on the web and embeddable surfaces.

Is Subflix still active?

Unverified. Subflix 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 Subflix?

Similar projects tracked by PulseGate include SubFlex, Subtitle Finder, and Subtitles.

Subflix is developed by hyvyys.

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Subflix

Name: Subflix
Author: hyvyys

mozilla.orgLanguage learning

Subflix is a Firefox extension that adds keyboard shortcuts and controls for Netflix subtitles. It can hide or show subtitles, switch subtitle languages, and display delayed subtitle history beside the video to help viewers focus on speech.

FreeWebEmbeddable

Visit mozilla.org

Overview

7 features

In the Language learning space, Subflix takes a focused approach. It focuses on making Netflix subtitles easier to use for language learning and speech comprehension. It is built as a consumer product for netflix viewers learning languages. Subflix is free to use. Subflix is available on the web and embeddable surfaces.

It is developed by hyvyys, and it first shipped in 2018. Key capabilities include subtitle history, subtitle visibility toggle, and delayed subtitles. The interface is available in 32 languages, including Czech, German, and Greek.

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

Subtitle history
Subtitle visibility toggle
Delayed subtitles
Subtitle language switch
Keyboard shortcuts
Custom history length
Configurable delay

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

Indexed11 Sept · 17:00 UTC
Subflix verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Subflix

What is Subflix?: Subflix focuses on making Netflix subtitles easier to use for language learning and speech comprehension. It is catalogued under Language learning on PulseGate.
Who should use Subflix?: Subflix is a consumer product built for netflix viewers learning languages.
Does Subflix have a free plan?: Yes — Subflix is free to use.
What platforms does Subflix run on?: Subflix runs on the web and embeddable surfaces.
Is Subflix still active?: Unverified. Subflix 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 Subflix?: Similar projects tracked by PulseGate include SubFlex, Subtitle Finder, and Subtitles.SubFlex Subtitle Finder Subtitles
Who makes Subflix?: Subflix is developed by hyvyys.
When did Subflix launch?: Subflix first shipped in 2018.

At a glance

Pricing: Free
Platforms: Web
First seen: 11 Sept 2026
Built for: Netflix viewers learning languages
Model: B2C
Solves: Making Netflix subtitles easier to use for language learning and speech comprehension.

Registered as

Firefox Add-ons: subflix

Developer

hyvyys

Index record

Indexed: 11 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 11 Sept 2026

Identity audit (13)

Slug: subflix-mozilla-org
Lifecycle state recorded: 11 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 11 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: 11 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/subflix

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