How do I download Zotero?
You can download Zotero on the Zotero download page.
How do I install Zotero?
Open the .dmg you downloaded and drag Zotero to the Applications folder. You can then run Zotero from Spotlight, Launchpad, or the Applications folder and add it to your Dock like any other program.
Run the setup program you downloaded.
Zotero users are given 300 MB of free Zotero File Storage, with larger storage plans available for purchase. To check your usage and/or sign up for additional storage, visit the storage settings of your Zotero account.