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Mozilla Firefox 55.0.0

Open source Web browser

Free Download

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Mozilla Firefox screenshotMozilla Firefox is a free to use and open-source web browser that provides a lot of useful features and customization options. Its performance is great, and it's developed to take care of your privacy.

Firefox contains numerous built-in options that can be expanded with a vast catalog of extensions.

If you're looking for an alternative to Safari on your Mac, you may discover that some websites load more rapidly and work better through Firefox. Specially if you have problems with particular websites you visit regularly in Safari or another web browser, it might be effective it to try out to see if it can browser them more smoothly.

When you open a start tab in Firefox, you will see a tiled display of the websites you've visited recently or most often, so you can get back to your preferred websites with ease.


  • Several built-in features.
  • Extensive catalog of add-ons.


  • Slow to start.
Name Mozilla Firefox
Version 55.0.0
Developer | see all products from this developer
Product Homepage Mozilla Firefox
License Free (Freeware)
Last Week Downloads 11
All Time Downloads 9,078
Filename Firefox 55.0.dmg
Filesize 48.8MB
MD5 Checksum 041441480F8BEA96CB7FE31FE23078F7
OS Support Mac OS X
Category Internet

100% CLEAN Certification

BadgeMozilla Firefox has been tested by team against viruses, spyware, adware, trojan, backdoors and was found to be 100% clean. Our editors will recheck this software periodically to assure that it remains clean.


Old Versions

Software Date Added
Mozilla Firefox 55.0.0 August 10, 2017 - Latest Version
Mozilla Firefox 54.0.0 June 19, 2017
Mozilla Firefox 48.0.0 August 17, 2016
Mozilla Firefox 47.0.1 June 29, 2016
Mozilla Firefox 46.0.1 May 04, 2016

Download the free Mozilla Firefox