This article explains how to download and install Firefox on a Mac.
If you use an old version of OS X, see these articles for more information:
To download and install Firefox:
Firefox Mac OS X 10.9, 10.10 and 10.11 users move to Extended Support Release Note: Firefox version 83 and higher support both Intel-based Macs (x86 architecture) and Apple devices with the new ARM-based CPU (Apple Silicon).
Tip: You can add Firefox to your dock for easy access. Just open your Applications folder and drag Firefox to the dock.
Firefox is now ready for use. Just click on its icon in the dock or Applications folder to start it.
When you first start up Firefox, you will be warned that you downloaded Firefox from the Internet. Because you download Firefox from the official site, click .
Upon installation, Firefox will not be your default browser, which you'll be notified about. That means that when you open a link in your mail application, an Internet shortcut, or HTML document, it will not open in Firefox. If you want Firefox to do those things, click . If you're just trying out Firefox or simply do not wish to set Firefox as your default browser, click .
The __MACOSX folder is created when a Mac user creates and archive (also called a zip file) using the Mac. If the Mac user sends the zip file to another Mac user, the folder will not appear - this is a hidden folder. Many files on the Mac have two parts: a data fork, and a resource fork. The built in zip utility on the Mac sequesters all of the resource forks into this __MACOSX folder when creating a zip archive. For certain files (like some font files), these resource forks are necessary to be left intact. ZipFiles4PC also has an option to preserve the resrouce forks without creating the __MACOSX folder.
When the Mac user sends the zip file to a PC user, however, all of the hidden files are shown. PC users are often confused by these (seemingly superfluous) files and folders. You can use our Zip Files for the PC utility to create zip files that contain neither the __MACOSX folder, nor the .DS_store files! You can download the free trial version today (see the link on the left) or you can buy it now using PayPal.