hello, please try to pair the two devices like this:

1. on your android phone go into the system's settings app and into accounts & synchronisation (might be worded slightly different on various android devices), go to firefox sync & tap on pair a device.
2. on your desktop go to firefox > options > sync > set up firefox sync > i have an account which will show you a 3x4 character code that you'll have to enter into your android device in order to complete the process.

Thank you so much. I thought I already did this but it turns out I was going to different settings for Firefox that was only for permission to sync on the device but not adding another device.

When opening settings on android tablet firefox browser - pair device is not showing or able to be selected -any help would be appreciated

The option for the android worked after I added firefox in settings accounts Thanks for the post

I FOUND A SOLUTION

In android, for whatever reason, the system wont bring you to a correct sync screen so to get there, (you may need to suit this information to your own situation depending on where you are in the account creation/sync stage)

Basically people are having the issue where the "Pair a Device" code wont show up. To fix this, dont set up the account within FireFox. Go to your home screen. Settings > Accounts > Add Account

Choose Firefox - as for me, I had to choose the option that said 'Firefox Sync (deprecated) ' which showed up the sync code dialogue which was not coming up before.

Hope this helps, I was swearing at my screen for an hour trying to get this working