URLs in FireFox with 14.04

[Lenny]

Hi,
In Ubuntu 14.04, and FireFox, a strange thing is happening.
I copied my favorites folder from my XP computer and pasted it into the 
desktop.
When I open one of the links, for my web eMail page, FireFox keeps opening 
tabs, like over 30 tabs, and all I hear repeating from Orca is
Firefox about

It repeats that for every tab it opens.
I go to close it and FireFox asks me if I want to close all the number  of 
tabs it has opened.
If I open FireFox from the desktop, it is okay, it goes to my home page.
Is there a reason that I cannot use URLs copied from Windows?
Thanks.

Glenn