Firefox for Mac
Old Version of Firefox 33.0 (Beta 4)
Selected Version
Firefox 33.0 (Beta 4)
Supported Systems
Legacy OS support
Mac OS X 10.1 (Firefox 1.0.8), OS X 10.2 and OS X 10.3 (Firefox, Mac OS X 10.4 (Firefox 3.X), Mac OS X 10.5 or above (Current Version)
Open Source
Release Date
17 September, 2014 (7 years ago )

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Download Firefox 33.0 (Beta 4)
Firefox 33.0 (Beta 4)

Firefox 33.0 (Beta 4) (64.17 MB)

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System Requirements of Firefox 33.0 (Beta 4)
  • Mac OS X 10.6 (Snow Leopard) (Intel)
  • Mac OS X 10.7 (Lion) (Intel)
  • Mac OS X 10.8 (Mountain Lion) (Intel)
  • Mac OS X 10.9 (Mavericks) (Intel)
Program Information of Firefox 33.0 (Beta 4)
Version Name:
Firefox 33.0 (Beta 4)

File Size:
64.17 MB

Released Date:
17 September, 2014 (7 years ago)

MD5 Checksum:

SHA1 Checksum:

Version History of Firefox 33.0 (Beta 4)
  • Bug 1040446 - mozilla::pkix: add error code for CA cert used as end-entity cert.
  • Bug 1039064 - Use strongly-typed enum instead of NSPR-style error handling.
  • Bug 1061003 - Add New Rule won't work in non-english locales.

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Firefox for Mac Screenshots

Screenshots are not available for this software

About Firefox for Mac

Mozilla Firefox is a graphical web browser developed by the Mozilla Corporation and a large community of external contributors. Firefox started as a fork of the Navigator browser component of the Mozilla Application Suite. Firefox has replaced the Mozilla Suite as the flagship product of the Mozilla project, under the direction of the Mozilla Foundation.

To display web pages, Firefox uses the Gecko layout engine, which implements most current web standards in addition to several features which are intended to anticipate likely additions to the standards. Latest Firefox features include tabbed browsing, spell checking, incremental find, live bookmarking, a download manager, private browsing, location-aware browsing (also known as "geolocation") based exclusively on a Google service and an integrated search system that uses Google by default in most localizations. Functions can be added through add-ons, created by third-party developers, of which there is a wide selection, a feature that has attracted many of Firefox's users. Mozilla Firefox is a cross-platform browser, providing support for various versions of Microsoft Windows, Mac OS X, and Linux.

Firefox Features

  • Improved Tabbed Browsing
  • Spell Checking
  • Search Suggestions
  • Session Restore
  • Web Feeds (RSS)
  • Live Titles
  • Pop-up Blocker

Updates : Firefox for Mac Updates