Hi

I recommend having a read of this article that will help you sent your home page.

I hope this helps, but if not, please come back here and we can look into a different solution for you.

Does it only happen when you completely shut down and restart Windows, or does it also happen when you Exit out of Firefox and start Firefox up without restarting Windows?

If your home page gets reset every time you completely exit Firefox, even if you don't restart Windows, this article may have the explanation: How to fix preferences that won't save.

Edit: Actually, there's a link to that article in the earlier article, so... never mind.