Adobe services and products cannot be used in Cuba, Iran, North Korea, Syria, Crimea, or the so-called Donetsk and Luhansk People’s Republics. Firefly is also not available in Russia, Belarus, and China.
Firefly is currently a web app and can only be accessed at https://firefly.adobe.com. There is no standalone app to download.
Firefly supports Chrome, Safari, and Edge browsers on the desktop (Brave also works for some users).
Firefly is not currently supported on tablets or mobile devices.
Do a hard refresh on your browser, Ctrl(Cmd) + Shift + R.
If this doesn't work, try accessing the site with an incognito browser.