Trying to sync between Macbook and iPad.

Instructions from Firefox on my Macbook are: go to Menu (on iPad) and tap Sync & Save data. Then scan QR code below.

I tried to do this, but no Sync option appears on my iPad menu. Is it hidden under another option I do have? I tried choosing 'Settings' but it wasn't there. All the other menu options don't seem relevant - 'Find in Page', for example, or Copy, Share, etc. (I chose the menu at top right of screen, as shown on my Firefox page instructions from the Macbook). Can't see any other Menu icons on the iPad Firefox page. Any advice on how to locate 'Sync and Save' on my Firefox app homepage would be gratefully received! Thank you.