Older versions of Safari will not work. They don't display the Dropbox website properly. Firefox should be fine. I'm running Firefox 42 without a problem (though I'm on Windows, not a Mac).
[This thread is now closed by moderators due to inactivity. If you're experiencing a similar behavior, feel free to start a new discussion in the Dropbox Community here.]
We love to learn from the educators who use Dropbox. Whether you teach kids, teens, adults or a combination of all three, we want to know what apps and integrations you use with Dropbox to help with teaching. Which of the ones below is your favorite, or most used tool?