WebTools is a consumer product built for firefox users who need quick everyday web utilities.

Yes — WebTools is free to use.

What platforms does WebTools run on?

WebTools runs on the web and embeddable surfaces.

Is WebTools still active?

Unverified. WebTools 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 WebTools?

Similar projects tracked by PulseGate include WebTool, WebTools, and Wikidata:Tools/Wikidata for Web.

WebTools is developed by Leersie.

How long has WebTools been around?

WebTools first shipped in 2021.

Back to the index

WebTools

Name: WebTools
Author: Leersie

mozilla.orgBrowser DevTools & extensions

WebTools is a Firefox browser extension that collects common utilities in a single popup. It includes calculators, timers, dictionaries, translation, media downloading, speed testing, and website availability checks for general web users.

FreeWebEmbeddable

Visit mozilla.org

1alternative

11features

2021since

Overview

11 features

In the Browser DevTools & extensions space, WebTools takes a focused approach. It focuses on accessing common utilities without opening separate websites or leaving the current webpage. It is built as a consumer product for firefox users who need quick everyday web utilities. WebTools is free to use. It ships for the web and embeddable surfaces.

Behind WebTools is Leersie, and it first shipped in 2021. Among its 11 catalogued features are calculator, timer, and stopwatch. The interface is available in 32 languages, including Czech, German, and Greek.

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

Calculator
Timer
Stopwatch
Random number generator
Dictionary
Synonym lookup
Translator
YouTube converter
Video downloader
Speed test
Website status check

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

Indexed15 Sep · 08:59 UTC
WebTools verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about WebTools

What does WebTools do?: WebTools focuses on accessing common utilities without opening separate websites or leaving the current webpage. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is WebTools for?: WebTools is a consumer product built for firefox users who need quick everyday web utilities.
Is WebTools free?: Yes — WebTools is free to use.
What platforms does WebTools run on?: WebTools runs on the web and embeddable surfaces.
Is WebTools still active?: Unverified. WebTools 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 WebTools?: Similar projects tracked by PulseGate include WebTool, WebTools, and Wikidata:Tools/Wikidata for Web.WebTool WebTools Wikidata:Tools/Wikidata for Web
Who makes WebTools?: WebTools is developed by Leersie.
How long has WebTools been around?: WebTools first shipped in 2021.

At a glance

Pricing: Free
Platforms: Web
First seen: 15 Sept 2026
Built for: Firefox users who need quick everyday web utilities
Model: B2C
Solves: Accessing common utilities without opening separate websites or leaving the current webpage.

Registered as

Firefox Add-ons: webtools

Developer

Leersie

Index record

Indexed: 15 Sep 2026
Lifecycle: Alive
First seen: Sep 2026
Last seen: 15 Sep 2026

Identity audit (13)

Slug: webtools-mozilla-org
Lifecycle state recorded: 15 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 15 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: 15 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/webtools

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