Alternatives to Firefox Developer Edition
A pre-release build of Firefox for web developers, with the newest developer tools and platform features. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Firefox Developer Edition
A pre-release build of Firefox for web developers, with the newest developer tools and platform features.
Replacements
Listings that take over the same core job as Firefox Developer Edition.
Microsoft Edge Dev / Canary
Preview channels of Microsoft Edge for testing early features.
Microsoft Edge Dev / Canary gives early Edge features and DevTools on the Chromium engine and installs alongside stable Edge, but it is proprietary rather than open source.
Firefox
The main browser not built on Chromium, with tracking protection turned on by default.
Firefox is the stable release of the same engine and is more reliable for daily use, but new developer tools and platform features arrive there later.
Chromium
The open-source browser project that Chrome, Edge, Brave, Opera and Vivaldi are all built from.
Chromium lets developers test against the bare Chromium engine, with Chrome for Testing builds for every release channel, but official builds do not auto-update.
Google Chrome
Google's browser, the Chromium-based one most web development is tested against.
Google Chrome is the Chromium browser most web development is tested against, with four-week updates, but it is proprietary stable software rather than a pre-release build.
Also worth comparing
These listings name Firefox Developer Edition as their own alternative, so the relationship runs both ways.
Chrome DevTools
The web developer tools built into Google Chrome for editing pages, debugging and profiling performance.
Firefox Developer Edition is a pre-release Firefox build with the newest developer tools early, switching from Chromium to Firefox's engine at the cost of some stability.
Firefox Developer Tools
The web developer tools built into Firefox for inspecting, editing and debugging HTML, CSS and JavaScript.
Firefox Developer Edition is a pre-release Firefox build that gets the newest developer tools earlier, at the cost of being potentially less stable than the regular release.
Firefox Nightly
Mozilla's daily pre-release build of Firefox for trying and testing upcoming browser features.
Firefox Developer Edition is a pre-release build aimed at web developers, with the newest developer tools and ARM64 builds, but features reach it later than they reach Nightly.
Safari Technology Preview
Apple's early-access Safari build for macOS with the latest WebKit engine and developer tools.
Firefox Developer Edition gives early developer tools and platform features for Gecko instead of WebKit, and runs on Windows, macOS and Linux, including ARM64.
Similar software
Related functionality, not a direct replacement.
Speedometer
A browser benchmark that measures web app responsiveness by simulating user actions in demo applications.
JetStream
A JavaScript and WebAssembly benchmark suite that measures how fast browsers start up and run advanced web apps.
HTML5test
A web page that scores how many HTML5 and related web platform features your browser supports.
MotionMark
A browser graphics benchmark that measures how well a browser animates complex scenes at a target frame rate.
Basemark Web 3.0
A free online benchmark that measures browser graphics and JavaScript performance, with WebGL and HTML5 tests.
WebXPRT 5
A browser benchmark that scores devices on everyday web tasks built with HTML5, JavaScript and WebAssembly.
