when trying to make a seller an offer i get the following.

Firefox Can’t Open This Page

To protect your security, www.ebay.com will not allow Firefox to display the page if another site has embedded it. To see this page, you need to open it in a new window.
What can you do about it?

To protect your security, www.ebay.com will not allow Firefox to display the page if another site has embedded it. To see this page, you need to open it in a new window.

The problem lies with the ebay.co.uk site using ebay.com make an offer scripting,
the page/scripting is rejected as a result due to the .co.uk site being a different site to the .com site.

Looks like ebay has introduced some additional site security measures without actually realizing the effects these measures can have on cross site scripting such as make an offer etc.

Ebay need to fix this asap.

I will not be the only one affected by this fault.

I also understand what the fault means and that there is nothing that anyone outside of ebay technical can do to fix it.