Mozilla Firefox Beta for Mac

Used Mozilla Firefox Beta for Mac?

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.

Mozilla Firefox Beta Analysis

AI Assisted Content · June 11, 2026

Not written by CNET Staff.

Mozilla Firefox Beta is a free web browser designed for Mac users, offering advanced features and improved performance. As a beta version, it provides users with early access to upcoming features and enhancements before they are fully released. This browser focuses on speed, privacy, and customization, allowing users to tailor their browsing experience to their preferences.

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The browser includes a range of tools such as enhanced tracking protection, a built-in password manager, and support for various extensions. Firefox Beta also emphasizes user feedback, enabling users to report bugs and suggest improvements, thereby playing an active role in the browser's development. Overall, it stands out for its commitment to user privacy and a customizable interface.

Mozilla Firefox Beta for Mac

Used Mozilla Firefox Beta for Mac?

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Full Specifications

GENERAL

Release: February 1, 2021

Latest update: June 11, 2026

Version: 86.0b4

OPERATING SYSTEMS

Platform: Mac

Operating System: Mac OS X

Additional Requirements

macOS Big Sur
macOS Catalina
macOS Mojave
macOS High Sierra
macOS Sierra
OS X El Capitan
OS X Yosemite
OS X Mavericks
OS X Mountain Lion

POPULARITY

Total Downloads: 122,409

Downloads Last Week: 2

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Last Updated

User Reviews

2.7/5

78 User Votes

Major connectivity problems.
Jake_42December 12, 2015
Pros
New shiny, must be better
Cons
Broken, can't connect to things.
Summary
New tabs spin forever. Some tabs open from previous session still work. New tabs do not. (Review written with chrome)
Mozilla should have an universal Firefox
bodythymeApril 13, 2014
Pros
none that I can see because Mozilla has forsaken the Mac PPC users yet again
Cons
Another sad Mac PPC user and now I can't even find the older version so that I can continue to use it until Mozilla wakes up to the fact that there are thousands of people they are forsaking
Summary
Mozilla should have an universal Firefox for both PPC and Intel architecture as mention in they specs.
Just Fine...
laryjonesMay 18, 2013
Pros
A bit smoother than before... I had no major prolems
Cons
I found no particular problems, except one hang which might not have been due to Firefox.
Summary
GREAT Product NO bugs here yet
fitztJune 7, 2012
Pros
Speed, ease of use No download issue here.
Cons
None to report
Summary
1 to 10 I give it a 8
NOT for Mac OS X 10.5 PPC
emiliopalMarch 14, 2012
Pros
None, can not be use on a Mac OS X 10.5 PPC
Cons
Can not install this version of Firefox on my Mac OS X 10.5 PPC.
Summary
Mozilla should have an universal Firefox for both PPC and Intel architecture as mention in they specs.? Operating system: Mac OS X 10.5/10.7/10.5 PPC/Intel/10.6 Intel
SOUNDS wonderful! I (sadly) can only imagine!
vonnlineFebruary 5, 2012
Pros
Great for those with systems that can use it. Love my Firefox 3.6.26 but it is now a dinosaur.
Cons
No Mac PPC support.
Summary
Feeling very thankful for TenFourFox because me & my Mac are bff's! :)
the link downloads FF version 10b6 and not version 11b1
rob.010February 3, 2012
Pros
if this was the correct version to download it would be easier to write a pro here
Cons
no cons wrong version which is downloadable at present
Summary
No support
smk1vtJanuary 27, 2012
Pros
none none none
Cons
No support for PPC! I know many have already made this point, but I wanted to add my name to the many disappointment
Summary
Not for Mac OS X 10.5 PPC architecture.
emiliopalOctober 22, 2011
Pros
None, using Mac OS X 10.5 PPC
Cons
Unable to install this version of Firefox beta 7.0b4 on my Mac OS X 10.5 PPC.
Summary
Mozilla should have an universal Firefox for both PPC and Intel architecture as mention in they specs. Operating system: Mac OS X 10.5/10.7/10.5 PPC/Intel/10.6 Intel
Fastest version I have seen. GREAT
fitztOctober 12, 2011
Pros
Speed,Speed and more
Cons
None yet, and I don't see any.
Summary
Well worth a try. Great on my Imac Dual.

Developer’s Description

Experience cutting-edge browser features and contribute to putting the final tweaks on performance and functionality.

Help refine and polish the newest features almost ready for prime time. With Firefox Beta, you get to test the latest performance, customization and security enhancements before they make it to our next version. Have an impact by helping to put the finishing touches on features and functionality.