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Firefox Developer Edition (64-bit)

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Firefox Developer Edition (64-bit)

  -  65.7 MB  -  Open Source
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Security Status

  • Latest Version

    Firefox Developer Edition 133.0b3 (64-bit) LATEST

  • Review by

    Juan Garcia

  • Operating System

    Windows 10 (64-bit) / Windows 11

  • User Rating

    Click to vote

  • Author / Product

    Mozilla Organization / External Link

  • Filename

    Firefox%20Setup%20133.0b3.exe

Firefox Developer Edition, which is better known as Firefox Quantum, lets you try out the newest development tools and features that are coming to the main Firefox versions soon.

What makes the newest developer editions different from the previous versions is they don’t use the Aurora channel as their basis anymore. Now they use the Beta channel as their basis.

Enhanced Engine to Attract Previous Firefox Users

The next-generation web browser engine lets Firefox utilize virtually all the CPU cores of your computer. You’ll notice a faster performance within seconds after you begin browsing with it.

The primary goal for this engine was a better performance, but there were improvements made to its privacy features too. For example, Quantum can block trackers on the internet and prevent your privacy from being compromised.



The Latest Firefox Helps Web Developers

You’ll find a lot of awesome new developer tools in this latest Firefox version. The previous tools are also in there. Some of the most notable tools include the JavaScript debugger that targets several different browsers and the CSS Grid that lets you create dynamic and elaborate web layouts.

There are several new features for the Inspector, Console and Network tabs. For example, CSS work can now be done with the Inspector. As for the Console, it now lets you inspect in-line objects and conduct group messaging.

The new “Photon” user interface comes with a refreshed appearance

The GUI design pattern of the interface is brand new and feels more modernized. The square tabs have replaced the curvy tabs. Plus, there is a new main menu that is better organized than the old menu.

The tab window of Firefox Developer Edition 64 bit is new and includes a list of recommended stories and most-visited websites.

A totally redesigned engine which looks new and performs better

Within the last couple of years, Quantum is a huge innovation for Firefox and certainly outperforms the competition. This will certainly help bring back the Firefox browser into the mainstream.

Also Available: Firefox Developer Edition (32-bit) and Firefox Developer Edition for Mac

Download Firefox Developer Edition (64-bit) Latest Version

  • Firefox Developer Edition 133.0b3 (64-bit) Screenshots

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    Firefox Developer Edition 133.0b3 (64-bit) Screenshot 1
  • Firefox Developer Edition 133.0b3 (64-bit) Screenshot 2
  • Firefox Developer Edition 133.0b3 (64-bit) Screenshot 3

What's new in this version:

New:
- You can now show tabs from other devices in the Tab overview menu.
- Firefox now supports touchpad hold gestures on Linux. This means that kinetic (momentum) scrolling can now be interrupted by placing two fingers on the touchpad.
- GPU-accelerated Canvas2D is enabled by default on Windows.
- Desktop mode browsing is now enabled by default for large devices on Firefox for Android. This can be controlled via a preference under Settings in "Site settings" previously named "Site permissions".
- When copying text to the clipboard in Private Browsing mode, Firefox for Android now handles it as sensitive content. The toast notification for the clipboard is masked on Android 13 and higher.
- Firefox now has a new anti-tracking feature enabled in Enhanced Tracking Protection "strict" mode: Bounce Tracking Protection. This protection detects bounce trackers based on redirect behavior and periodically purges their cookies and site data to prevent tracking.

Fixed:
- If we have the server time, we adjust the "expire" attribute value by adding the delta between the server and the local times. If the current time is set in the future, we consider valid cookies that are not expired for the server.
- Fixed an issue that started with macOS Sonoma where the emoji picker would open and immediately close when opened with the Cmd+Ctrl+Space shortcut.
- Thanks to research by Carlos Duarte do Nascimento (Chester) and :bintoro, and a patch by Carlos Duarte do Nascimento (Chester), we have been able to fix this universally for this shortcut and similar shortcuts going forward.
- Fixed an issue that started with macOS Sonoma where the emoji picker would also insert the character "e" in the selected text field/box when opening the emoji picker using the Fn+e shortcut.
- We have also fixed this for similar shortcuts using the Fn key.
- The "Picture-in-Picture: auto-open on tab switch" feature from Firefox Labs now behaves more reliably on more sites - auto-opening more videos that you care about, and ignoring ones that you probably don't care about.

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