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.
Make sure your Mac meets the for Firefox. If you use an old version of OS X, see this article for more information. Installing Firefox on Mac. Visit the in any browser (for example, Apple Safari). It will automatically detect the platform and language on your computer and recommend the best version of Firefox. Mac users interested in Firefox version for os x 10.8.5. Generally download: Firefox 80.0 Free Firefox is one of the most popular web browsers on the market, providing numerous helpful features and quick speed to millions of users worldwide.
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 High Sierra||10.13.6|
|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|
If there is a problem with a Firefox version, most people will try to revert Firefox back to the way it was before and downgrade it, but we do not recommend this action. Downgrading Firefox leaves a user more vulnerable to attacks and, on most occasions, doesn't fix the problem that occurred while updating. This article gives you some alternatives to downgrading and links to old versions of Firefox, if you do choose to downgrade.
Problems with an update are generally not caused by the new version of Firefox, but rather the update process. Installing a previous version will not help in most cases. Instead, see:
Ensure all security and security-related software is fully updated. Some security software will need to be upgraded to a new version for each Firefox version update.
Optional software bundled with security software may also need updating. Such software may not be essential for your security, but if outdated, it may interfere with the use of Firefox, or cause Firefox to crash.If you want to downgrade, you can visit Mozilla's directory of older Firefox versions using the link below. Please note, however, that using older versions of Firefox can be harmful and that we recommend you use the newest version of Firefox.
Instead of downgrading to an older, insecure version of Firefox and changing your update settings, you should consider these alternatives:
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. For more information, see the article Switch to Firefox Extended Support Release (ESR) for personal use.
Use the latest version of another browser. If the current Firefox version is not to your liking or just not working right now, there are alternative browsers that you can use to browse the web.
If the latest version of Firefox is causing problems for you or you just don't like something about it, please give us feedback about it here: