Hey I was playing xbox live when somebody said they were going to hack my ip address. A few minutes after my internet disconnected then began to reconnect and disconnect then its back to normal. Howeveri have been on the phone to my ISP they say there's no problem there end. Then I went on the phone to Microsoft about xbox live they just made me change my pass. Now I get this error message some times what is it?

http://i244.photobucket.com/albums/gg39/apologisenow/errormessage.jpg

There is the message please help.

Where are you getting this message as it seems to indicate that your Firefox installation has become corrupt.
Time for a system restore.

Is this error message anything to with my other problem?

Nope.
What you most likely had was a sync issue that resolved itself.

You are on Tiscali after all, not the most reliable of ISP's ;)

Where should I do the system restore to?

A day before the last time Firefox worked correctly.

Ok and about my ip address hack what should I do?

I really don't think it was anything of the sort, but I would be inclined to ensure your routers firewall is enabled.
If it doesn't have that functionality then it's time for an upgrade.

It's a netgear DG834v3 I am not sure how to do it. If you could help it would be great thanks.