Installing Firefox on Mac

Firefox works with Yosemite, OS X 10.10, and earlier Mac operating systems.

However the latest operating system, OS X 10.11 El Capitan, is glitchy with FF, MS Office, and other things. So if you downloaded El Capitan on or after Sept. 30, this could be the problem.

Apple released a fix for El Capitan on October 21, OS X 10.11.1. According to Apple, "The OS X El Capitan 10.11.1 update improves the stability, compatibility, and security of your Mac, and is recommended for all users." See for additional information. If you moved on to El Capitan, you will want to investigate the latest fix. Perhaps it will help.

An alternative possibility is that students may have downloaded Firefox but didn't install it. Here are step-by-step instructions: . If a few students who aren't running El Capitan on their Macs can walk through these steps and let me know the point where they run into problems, it would help.