Firefox Developer Edition Reviews in 2026

Audience

Developers searching for a browser solution for developing, building, and designing applications

About Firefox Developer Edition

Welcome to your new favorite browser. Get the latest features, fast performance, and the development tools you need to build for the open web. All the latest developer tools in beta, plus experimental features like the multi-line console editor and WebSocket inspector. A separate profile and path so you can easily run it alongside release or beta Firefox. Preferences tailored for web developers, browser and remote debugging are enabled by default, as are the dark theme and developer toolbar button. Firefox DevTools now grays out CSS declarations that don’t have an effect on the page. When you hover over the info icon, you’ll see a useful message about why the CSS is not being applied, including a hint about how to fix the problem. The new Firefox DevTools are powerful, flexible, and best of all, hackable. This includes a best-in-class JavaScript debugger, which can target multiple browsers and is built in React and Redux.

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Mozilla Firefox

(44 Ratings)

Mozilla Firefox is a free, open-source web browser developed by the Mozilla Foundation, a non-profit organization dedicated to internet health and privacy. Designed to prioritize user privacy and security, Firefox offers features like Total Cookie Protection, which provides outstanding privacy by default. The browser includes tools such as Firefox View, allowing users to see tabs open on other devices and access recent history, and built-in PDF editing capabilities, enabling form edits directly within the browser. Available across various platforms, including Windows, macOS, Linux, Android, and iOS, Firefox ensures a consistent and secure browsing experience. Its commitment to user-centric development and transparency makes it a preferred choice for those seeking a trustworthy alternative to proprietary browsers.

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Basilisk

A XUL-based web browser demonstrating the Unified XUL Platform (UXP). This browser is a close twin to pre-Servo Firefox in how it operates. Basilisk is a free and Open Source XUL-based web browser, featuring the well-known Firefox-style interface and operation. It is based on the Goanna layout and rendering engine (a fork of Gecko) and builds on the Unified XUL Platform (UXP), which in turn is a fork of the Mozilla code base without Servo or Rust. Basilisk is primarily a reference application for the development of the XUL platform it builds upon, and additionally a potential replacement for Firefox. Basilisk is development software. This means that it should be considered more or less "beta" at all times; it may have some bugs and is provided as-is, with potential defects. Like any other free software community project, it comes without any warranty or promise of fitness for any particular purpose.

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Firefox Developer Tools

Firefox Developer Tools is a set of web developer tools built into Firefox. You can use them to examine, edit, and debug HTML, CSS, and JavaScript. This section contains detailed guides to all of the tools as well as information on how to debug Firefox for Android, how to extend DevTools, and how to debug the browser as a whole. You can open the Firefox Developer Tools from the menu by selecting Tools > Web Developer > Web Developer Tools or use the keyboard shortcut Ctrl + Shift + I or F12 on Windows and Linux, or Cmd + Opt + I on macOS.

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Firefox Nightly

(1 Rating)

Get a sneak peek at our next-generation web browser, and help us make it the best browser it can be: try Firefox Nightly. Nightly is an unstable testing and development platform. By default, Nightly sends data to Mozilla, and sometimes our partners, to help us handle problems and try ideas. Firefox Nightly gets updated every day and as a consequence, the release notes for the Nightly channel are updated continuously to reflect features that have reached sufficient maturity to benefit from community feedback and bug reports. Allow the browser toolbox to enable/disable multiprocess behavior on-demand (bug). The user can switch between two modes. The devtools console is now significantly faster! If you are a developer who heavily uses the console, this should be a substantial quality of life improvement. Firefox 100 goes out today! A milestone release, but also business as usual! Congratulations to contributors who helped get Firefox 100 out the door!

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Integrations

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Ratings/Reviews

Overall 0.0 / 5

ease 0.0 / 5

features 0.0 / 5

design 0.0 / 5

support 0.0 / 5

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Product Details

Platforms Supported

Cloud

iPhone

iPad

Android

Training

Documentation

Videos

Support

Online

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Firefox Developer Tools

Firefox Developer Tools is a set of web developer tools built into Firefox. You can use them to examine, edit, and debug HTML, CSS, and JavaScript. This section contains detailed guides to all of the tools as well as information on how to debug Firefox for Android, how to extend DevTools, and...

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Firefox Nightly

Get a sneak peek at our next-generation web browser, and help us make it the best browser it can be: try Firefox Nightly. Nightly is an unstable testing and development platform. By default, Nightly sends data to Mozilla, and sometimes our partners, to help us handle problems and try ideas....

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Basilisk

A XUL-based web browser demonstrating the Unified XUL Platform (UXP). This browser is a close twin to pre-Servo Firefox in how it operates. Basilisk is a free and Open Source XUL-based web browser, featuring the well-known Firefox-style interface and operation. It is based on the Goanna layout...

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Mozilla Firefox

Mozilla Firefox is a free, open-source web browser developed by the Mozilla Foundation, a non-profit organization dedicated to internet health and privacy. Designed to prioritize user privacy and security, Firefox offers features like Total Cookie Protection, which provides outstanding privacy...

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Firefox Nightly

Get a sneak peek at our next-generation web browser, and help us make it the best browser it can be: try Firefox Nightly. Nightly is an unstable testing and development platform. By default, Nightly sends data to Mozilla, and sometimes our partners, to help us handle problems and try ideas....

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Firefox Developer Tools

Firefox Developer Tools is a set of web developer tools built into Firefox. You can use them to examine, edit, and debug HTML, CSS, and JavaScript. This section contains detailed guides to all of the tools as well as information on how to debug Firefox for Android, how to extend DevTools, and...

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Basilisk

A XUL-based web browser demonstrating the Unified XUL Platform (UXP). This browser is a close twin to pre-Servo Firefox in how it operates. Basilisk is a free and Open Source XUL-based web browser, featuring the well-known Firefox-style interface and operation. It is based on the Goanna layout...

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