Firefox Nightly
Mozilla's daily pre-release build of Firefox for trying and testing upcoming browser features.
These buttons open the developer's own site, repository or store listing in a new tab. wares.gg does not host downloads.
2 more ways to get Firefox Nightly
Other download sites
Run by third parties, not by Mozilla. Prefer the official page above when it works.
Package managers
- Chocolatey
choco install firefox-nightly
About Firefox Nightly
Firefox Nightly is the earliest of Mozilla's pre-release channels. It is built from the latest development code every day, so new features and changes appear here first, before they move to Beta, Developer Edition and the stable release.
It suits people who want to test future Firefox versions and report problems. It is less stable than Beta, which is the most stable pre-release build.
Strengths
- Earliest access to new Firefox features
- Updated daily
- Helps testers report bugs before release
Limitations
- Pre-release builds can be unstable
- Not suited as a main browser for most people
Details
- Pricing
- FreeFree and open source.
- License
- MPL-2.0
- Developer
- Mozilla
- Platforms
- Windows, macOS, Linux
- How it runs
- Downloadable app
- Account
- Not required
- Best suited for
- Testers and developers who want to see Firefox changes as soon as they land
- Categories
- Web browsers, Developer tools
- Last verified
- Added
- Provenance
- Facts checked against the developer's own pages and store listings, 1 sources on file.
Alternatives to Firefox Nightly
Compare allSoftware that can replace Firefox Nightly for an important use case, and what changes if you switch.
Firefox Developer Edition
A pre-release build of Firefox for web developers, with the newest developer tools and platform 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.
Firefox
The main browser not built on Chromium, with tracking protection turned on by default.
Firefox is the stable release of the same browser, suitable as a main browser on desktop and mobile, but new features arrive only after pre-release testing.
Microsoft Edge Dev / Canary
Preview channels of Microsoft Edge for testing early features.
Microsoft Edge Dev / Canary preview channels test upcoming Edge features and DevTools on a proprietary Chromium base, installing separately from stable Edge instead of tracking Firefox changes.
Safari Technology Preview
Apple's early-access Safari build for macOS with the latest WebKit engine and developer tools.
Safari Technology Preview gives early access to the latest WebKit engine and Web Inspector, updating every few weeks rather than daily, and runs only on macOS.
Chromium
The open-source browser project that Chrome, Edge, Brave, Opera and Vivaldi are all built from.
Chromium lets testers follow the open-source Chromium engine with Chrome for Testing builds for every channel, but official builds do not auto-update on Windows or macOS.
Similar software
Related functionality, not necessarily a direct replacement.
Firefox ESR
The Extended Support Release of Firefox, a long-term stable build intended for organisations.
Servo
Experiment with a browser engine written in Rust.
Ladybird
Explore an independent browser with its own rendering engine.
HTML5test
A web page that scores how many HTML5 and related web platform features your browser supports.
