Release notes for each version of Firefox. Firefox Browser for Desktop. Get the browser that respects your privacy automatically. Mozilla, Firefox's creator, cautions computer users that reverting to old versions of the browser exposes them to security risks. However, some people may still prefer to use older Firefox versions. For example, you might have a business tool add-on that works only in older Firefox versions, or you may want to install a previous version if a. Install Firefox Extended Support Release. Firefox Extended Support Release (ESR) is an official version of Firefox developed for large organizations like universities and businesses. Firefox ESR does not come with the latest features but it has the latest security and stability fixes.
Software Version | Release Date | Size |
---|---|---|
Firefox 0.8 | Feb 24, 2011 | 6.20 MB |
Firefox 0.9 | Feb 24, 2011 | 4.73 MB |
Firefox 0.9.1 | Feb 24, 2011 | 8.52 MB |
Firefox 0.9.3 | Feb 24, 2011 | 8.52 MB |
Firefox 1.0 | Feb 24, 2011 | 4.69 MB |
Firefox 1.0 Pre Release | Feb 24, 2011 | 8.45 MB |
Firefox 1.0.1 | Feb 24, 2011 | 8.71 MB |
Firefox 1.0.2 | Feb 24, 2011 | 8.73 MB |
Firefox 1.0.3 | Feb 24, 2011 | 8.73 MB |
Firefox 1.0.4 | Feb 24, 2011 | 8.73 MB |
Firefox 1.0.5 | Feb 24, 2011 | 8.73 MB |
Firefox 1.0.6 | Feb 24, 2011 | 4.65 MB |
Firefox 1.0.7 | Feb 24, 2011 | 4.65 MB |
Firefox 1.5 Beta 1 | Feb 24, 2011 | 9.38 MB |
Firefox 1.5 Beta 2 | Feb 24, 2011 | 9.44 MB |
Firefox 1.5 | Feb 24, 2011 | 9.44 MB |
Firefox 1.5.0.1 | Feb 24, 2011 | 9.44 MB |
Firefox 1.5.0.3 | Feb 24, 2011 | 4.88 MB |
Firefox 1.5.0.4 | Feb 24, 2011 | 4.88 MB |
Firefox 1.5.0.5 | Feb 24, 2011 | 4.88 MB |
Firefox 1.5.0.7 | Feb 24, 2011 | 4.89 MB |
Firefox 2.0 Beta 1 | Feb 24, 2011 | 5.45 MB |
Firefox 2.0 Beta 2 | Feb 24, 2011 | 5.64 MB |
Firefox 2.0 Release Canidate 3 | Feb 24, 2011 | 17.56 MB |
Firefox 2.0 Release Canidate 2 | Feb 24, 2011 | 5.63 MB |
Firefox 2.0 Release Canidate 1 | Feb 24, 2011 | 5.62 MB |
Firefox 2.0 | Feb 24, 2011 | 5.63 MB |
Firefox 2.0.0.1 | Feb 24, 2011 | 5.69 MB |
Firefox 2.0.0.2 | Feb 24, 2011 | 17.61 MB |
Firefox 2.0.0.3 | Feb 24, 2011 | 5.73 MB |
Firefox 2.0.0.4 | Feb 24, 2011 | 5.73 MB |
Firefox 2.0.0.5 | Feb 24, 2011 | 5.74 MB |
Firefox 2.0.0.6 | Feb 24, 2011 | 5.74 MB |
Firefox 2.0.0.12 | Feb 24, 2011 | 5.75 MB |
Firefox 2.0.0.13 | Feb 24, 2011 | 5.76 MB |
Firefox 2.0.0.14 | Feb 24, 2011 | 5.76 MB |
Firefox 2.0.0.15 | Feb 24, 2011 | 5.76 MB |
Firefox 2.0.0.16 | Feb 24, 2011 | 5.77 MB |
Firefox 2.0.0.17 | Feb 24, 2011 | 17.14 MB |
Firefox 2.0.0.18 | Feb 24, 2011 | 17.14 MB |
Firefox 2.0.0.19 | Feb 24, 2011 | 17.14 MB |
Firefox 2.0.0.20 | Feb 24, 2011 | 17.14 MB |
Firefox 3.0 | Feb 24, 2011 | 7.15 MB |
Firefox 3.0.1 | Feb 24, 2011 | 7.15 MB |
Firefox 3.0.2 | Feb 24, 2011 | 7.16 MB |
Firefox 3.0.4 | Feb 24, 2011 | 7.16 MB |
Firefox 3.0.5 | Feb 24, 2011 | 7.17 MB |
Firefox 3.0.6 | Feb 24, 2011 | 7.17 MB |
Firefox 3.0.7 | Feb 24, 2011 | 7.17 MB |
Firefox 3.0.8 | Feb 24, 2011 | 7.17 MB |
Firefox 3.0.9 | Feb 24, 2011 | 7.18 MB |
Firefox 3.0.10 | Feb 24, 2011 | 7.18 MB |
Firefox 3.5.2 | Aug 3, 2009 | 17.55 MB |
Firefox 3.6.12 | Oct 27, 2010 | 18.57 MB |
Firefox 3.6.24 | Add info | 18.78 MB |
Firefox 3.6.25 | Dec 20, 2011 | 18.58 MB |
Firefox 6.0.1 | Aug 31, 2011 | 28.07 MB |
Firefox 6.0.2 | Sep 6, 2011 | 28.13 MB |
Firefox 7.0.1 | Sep 29, 2011 | 28.19 MB |
Firefox 8.0 | Nov 8, 2011 | 29.47 MB |
Firefox 8.0.1 | Add info | 29.47 MB |
Firefox 10.0.1 | Feb 11, 2012 | 31.38 MB |
Firefox is a free open source web browser that is a continuation of the Mozilla Application Suite and uses the Gecko rendering engine. Firefox has numerous popular features including tabbed browsing, spell checking, and the ability to add numerous community developed plugins.
Is your Mac up to date with the latest version of the Mac operating system (macOS or OS X)? Is it using the version required by some other product that you want to use with your Mac? Which versions are earlier (older) or later (newer, more recent)? To find out, learn which version is installed now.
If your macOS isn't up to date, you may be able to update to a later version.
From the Apple menu in the corner of your screen, choose About This Mac. You should see the macOS name, such as macOS Mojave, followed by its version number. If you need to know the build number as well, click the version number to see it.
This example shows macOS Catalina version 10.15 build 19A583.
These are all Mac operating systems, starting with the most recent. When a major new macOS is released, it gets a new name, such as macOS Catalina. As updates that change the macOS version number become available, this article is updated to show the latest version of that macOS.
If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps that are installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar, and Photos.
macOS | Latest version |
---|---|
macOS Catalina | 10.15.7 |
macOS Mojave | 10.14.6 |
macOS High Sierra | 10.13.6 |
macOS Sierra | 10.12.6 |
OS X El Capitan | 10.11.6 |
OS X Yosemite | 10.10.5 |
OS X Mavericks | 10.9.5 |
OS X Mountain Lion | 10.8.5 |
OS X Lion | 10.7.5 |
Mac OS X Snow Leopard | 10.6.8 |
Mac OS X Leopard | 10.5.8 |
Mac OS X Tiger | 10.4.11 |
Mac OS X Panther | 10.3.9 |
Mac OS X Jaguar | 10.2.8 |
Mac OS X Puma | 10.1.5 |
Mac OS X Cheetah | 10.0.4 |