How can I tell if my iOS device has synced with Firefox on my computer

Hi Kathy, You can check this by looking for something that you know is on the other device, such as an open tab. On your iPad, tap the tabs button and then tap Sync. You should see tabs that are currently open in Firefox on your computer. You can also tap Sync Now to manually refresh the synced data. It is also worth checking that the iPad is signed in to the same Mozilla account as your computer and that the types of data you want to sync, such as bookmarks, history, open tabs or passwords, are enabled in Settings. If you tell us what you are trying to sync (bookmarks, passwords, history, tabs, etc.), we can explain the easiest way to verify it.