Mozilla has released Firefox 20 for Mac users, and this major update brings several new features and improvements to the web browser. Two of the biggest features are “per-window” private browsing and a redesigned download manager.
You can now open a private browsing tab instead of having to open an entirely new window and close the current session. The new, Safari-like download manager is a little arrow that sits in the browser’s toolbar next to search. You can click it to see and interact with all current downloads.