Who is Script Runner for?

Script Runner is a consumer product built for firefox users and web developers.

Does Script Runner have a free plan?

Yes — Script Runner is free to use.

What platforms does Script Runner run on?

Script Runner runs on the web and embeddable surfaces.

Is Script Runner still maintained?

Unverified. Script Runner 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 makes Script Runner?

Script Runner is developed by ankur1218.

When did Script Runner launch?

Script Runner first shipped in 2023.

Back to the index

Script Runner

Name: Script Runner
Author: ankur1218

mozilla.orgBrowser DevTools & extensions

Script Runner is a Firefox extension that lets users create, save, and automatically run custom JavaScript and CSS on specific websites. It also supports global scripts and provides a console through the extension menu.

FreeWebEmbeddable

Visit mozilla.org

Overview

7 features

In the Browser DevTools & extensions space, Script Runner takes a focused approach. It focuses on running custom JavaScript and CSS on selected websites without manually applying scripts each time. It is built as a consumer product for firefox users and web developers. It is available for free. It ships for the web and embeddable surfaces.

It is developed by ankur1218, and it first shipped in 2023. Key capabilities include site-specific scripts, global scripts, and javaScript injection. The interface is available in 32 languages, including Czech, German, and Greek.

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

Site-specific scripts
Global scripts
JavaScript injection
CSS injection
Script saving
Extension console
Firefox for Android

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

Indexed9 Sept · 23:11 UTC
Script Runner verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Script Runner

What does Script Runner do?: Script Runner focuses on running custom JavaScript and CSS on selected websites without manually applying scripts each time. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Script Runner for?: Script Runner is a consumer product built for firefox users and web developers.
Does Script Runner have a free plan?: Yes — Script Runner is free to use.
What platforms does Script Runner run on?: Script Runner runs on the web and embeddable surfaces.
Is Script Runner still maintained?: Unverified. Script Runner 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 makes Script Runner?: Script Runner is developed by ankur1218.
When did Script Runner launch?: Script Runner first shipped in 2023.
What languages does Script Runner support?: The interface is available in 32 languages, including Czech, German, and Greek.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users and web developers
Model: B2C
Solves: Running custom JavaScript and CSS on selected websites without manually applying scripts each time.

Registered as

Firefox Add-ons: script-runner

Developer

ankur1218

Index record

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

Identity audit (13)

Slug: script-runner-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. 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: 9 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/script-runner

Ship this? Send a correction — no account, and you get a link to follow it.

Similar projects

Closest matches by what these projects do

Run JavaScriptmozilla.org