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Mozilla Firefox beta

Beta or prerelease software is not intended for inexperienced users, as the software may contain bugs or may potentially damage your system. We strongly recommend that users exercise caution and save all mission-critical data before installing or using this software.

Key Details of Mozilla Firefox beta

  • Check out the latest pre-release of the upcoming Firefox
  • Last updated on 06/04/20
  • There have been 15 updates within the past 6 months
  • The current version has 1 flag on VirusTotal

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Full Specifications

What's new in version 78.0b

  • The baseline interpreter for JavaScript bytecode execution is now enabled
  • The developer tools accessibility panel now includes an audit for keyboard accessibility
  • The developer tools accessibility panel now includes a color deficiency simulator for systems with WebRender enabled
  • When focused on a toolbar button, users can now type the first (or first few) characters of another button's name to jump directly to that button.
  • Inactive CSS: The Inspector now grays out CSS declarations that donÃ?¢??t affect the selected element and shows a tooltip explaining why.
  • Built-in Firefox pages now follow the system dark mode preference
  • WebRender enabled by default for Windows desktops with Integrated Intel graphics for Low Resolution devices
  • Aliased theme properties have been removed, which may affect some themes
  • The Firefox Accounts toolbar menu has been updated and reorganized to give faster access to account features and services.


Publisher Mozilla
Publisher web site
Release Date June 02, 2020
Date Added June 04, 2020
Version 78.0b


Category Browsers
Subcategory Web Browsers

Operating Systems

Operating Systems Windows 2000/XP/2003/Vista/7/8
Additional Requirements None

Download Information

File Size 47.38MB
File Name External File


Total Downloads 2,296,196
Downloads Last Week 26


License Model Free
Limitations Not available
Price Free
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