Cyberfox Icon


A Mozilla-based browser designed for the 64-bit architecture

4.2 Stars (37)
11,374 Downloads (This Week)
Last Update:
Download Cyberfox-42.0b4.en-US.win32.beta.7z
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Cyberfox is a Mozilla-based Internet browser designed to take advantage of 64-bit architecture but a 32-bit version is also available. The application provides a higher performance when navigating your favorite pages.

Compatible Windows Operating Systems:

Windows Vista SP2 x86
Windows 7/7 SP1 OS x86|x64
Windows 8/8.x OS x86|x64
Windows 10 OS x86|x64
( Windows XP Unsupported, Windows Vista x64 Unsupported ).

Dedicated support forums.

Dedicated Contact Forms.

Profile Buddy:
Transfer your profile from any Mozilla base browser.

Tell us what you think and write a review.

Cyberfox Web Site




  • x64 Bit Web Browser (x86 Also available)
  • Powered By Mozilla source code.
  • Intel & Amd optimized versions available.
  • Removed features (Telemetry, Healthreport, sponsored tiles And other components that collected information)
  • Added new features built in.
  • Uses its own profile system.


User Ratings

ease 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
features 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
design 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 4 / 5
support 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 3 / 5
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User Reviews

  • brotherboard
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Excellent browser very fast 64bit browser compared to Firefox 32bit. Installed yesterday. I was concerned about transferring from Firefox as I had a very heavily customised profile, and obviously many bookmarks. I used the "Firefox Environment Backup Extension" add-on in Firefox [FEBE for short] an excellent back-up facility that I have used for ages. Downloaded Cyberfox and installed FEBE on that. The did a restore profile from there using the file saved from Firefox. All OK and all my custom settings were transferred. Cyberfox is now my [speedy] default browser.

    Posted 08/20/2015
  • peter-rodwell
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    Installed it yesterday and it works just fine. It does indeed seem faster than Firefox. But the inability to import passwords, sites allowed to leave cookies and bookmarks from Firefox is a major flaw - this MUST be fixed! Until then, 4 stars only. UPDATE: Thanks to brotherboard for putting me on to FEBE, which works just fine. I've upgraded the rating to 5 stars, although I still feel this feature should be built into Cyberfox.

    Posted 08/07/2015
  • mrtoad289
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I uninstalled when I found only import options were IE & Chrome...neither would work on this PC. If Cyberfox could have imported from waterfox or palemoon64, I would have gone further with it, but setting it up from way.

    Posted 06/22/2015
  • rlwainwright
    1 of 5 2 of 5 3 of 5 4 of 5 5 of 5

    I'm giving it 4 stars to start, only been using it for a couple of hours. But I like what I see so far - it seems to be very fast and it's not chewing up my CPU like Firefox was doing. I'm using a Toshiba laptop with an Intel P3 dual-core processor running at 2.2 GHz, Windows Home Premium 64 Bit, and 8GB of RAM, which *should* be more than enough machine and software to browse the web. However, Firefox (35.0.1) would start up and almost immediately peg my CPU at 100%. I also had to disable all Flash and Silverlight plugins which makes browsing the web almost impossible nowadays. Cyberfox is currently running with 2 tabs open and I'm seeing 7-15% CPU usage and 281 MB of RAM usage which is fine with me. I think the RAM usage is a wee bit high, Firefox would use about 160 MB, but I was way more concerned about maxing out my CPU. I have plenty of RAM, but once you start getting over 70% CPU usage, the system starts to get very sluggish. I tired to use the Waterfox browser but it would not startup properly, crashing almost immedaitely. SO far Cyberfox is working great and I plan on sticking with it as long as it maintains reasonable levels of CPU and RAM usage... -RW-

    Posted 02/01/2015
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Additional Project Details

Intended Audience

End Users/Desktop

User Interface


Programming Language



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