Who is Local Mode for?

Local Mode is an open-source project built for web developers.

Does Local Mode have a free plan?

Yes — Local Mode is free to use.

Is Local Mode still maintained?

The GitHub repository shows 19.1k commits in the last 90 days.

What projects are similar to Local Mode?

Similar projects tracked by PulseGate include Track Debug, ZenPress, and StarPulse.

Who develops Local Mode?

Local Mode is developed by Mozilla, based in the United States.

Is Local Mode open source?

Local Mode has a public GitHub repository.

Back to the index

Local Mode

Name: Local Mode
Author: Mozilla

mozilla.orgInfrastructure🇺🇸

This is the official Mozilla documentation page for Firefox Local Mode within the DevTools user guide. It explains how developers can work with Firefox's developer tools in a local environment for inspecting, debugging, and profiling web applications. The resource is part of the broader Firefox Source Docs covering various aspects of the browser's development and tooling capabilities.

FreeWeb

Visit mozilla.org

12.7kstars

1.4kforks

1970since

Overview

Local Mode is a Developer Tools project. It focuses on understanding how to use Firefox DevTools in local mode for web development and debugging. It is built as an open-source project for web developers. Local Mode costs nothing to use. It runs on the web.

It is developed by Mozilla (United States). Development happens publicly on GitHub with 12.7k stars and 19.1k commits in the last 90 days.

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

Built with & integrations

Hosting

AWS

Runs on

Browser

Detected from

AWS: x-amz-cf-id header · x-amz-cf-pop header · via header

Trust & compliance

Verified signals

HTTPSGitHub · ★ 12.7kActive maintenance

Indexing history

What PulseGate has recorded for this listing

Indexed1 Aug · 02:49 UTC
Firefox Local Mode for Web Developers verified against its public source
Source: PulseGate · Open

Frequently asked questions about Local Mode

What does Local Mode do?: Local Mode focuses on understanding how to use Firefox DevTools in local mode for web development and debugging. It is catalogued under Developer Tools on PulseGate.
Who is Local Mode for?: Local Mode is an open-source project built for web developers.
Does Local Mode have a free plan?: Yes — Local Mode is free to use.
What platforms does Local Mode run on?: Local Mode runs on the web.
Is Local Mode still maintained?: The GitHub repository shows 19.1k commits in the last 90 days.
What projects are similar to Local Mode?: Similar projects tracked by PulseGate include Track Debug, ZenPress, and StarPulse.Track Debug ZenPress StarPulse
Who develops Local Mode?: Local Mode is developed by Mozilla, based in the United States.
Is Local Mode open source?: Local Mode has a public GitHub repository.

At a glance

Platforms: Web
Languages: English
Open source: Yes · ★ 12.7k
First seen: 1 Aug 2026
Built for: web developers
Model: Open source
Solves: Understanding how to use Firefox DevTools in local mode for web development and debugging.

Registered as

GitHub: mozilla-firefox/firefox

Developer

🇺🇸Mozilla

Community-driven

GitHub

Open source

View on GitHub

Stars: 12,710
Forks: 1,361
Open issues: 1
Last commit: 1 Aug 2026
Commits 90d: 19,129
Contributors: 12,620
Authorship: Community-driven
Default branch: main

Live coverage

Identity confidence: Medium · 81.8
Indexed: 1 Aug 2026
Lifecycle: Alive
First seen: Aug 2026
Last seen: 1 Aug 2026

Identity audit (13)

Slug: firefox-local-mode-for-web-developers-mozilla-org
Lifecycle state recorded: 1 Aug 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 1 Aug 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: 5 Aug 2026
Canonical URL: https://firefox-source-docs.mozilla.org/devtools-user/local_mode/index.html

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