hello quaser22, hopefully this article can answer your question: How do I set up Sync on my computer? :-)

I have a Kindel from Amazon and a small laptop as well as my desktop. Will I be able to access info on these devices?

you can certainly sync your data between the laptop and your desktop pc - the amazon kindle isn't supported. it will only work on mobile devices that run firefox (at the moment android & ios with the firefox home app).

'Thanks. '