EntitY, I am glad you gave Firefox a try again, and good to hear it is working well for you
. I am sure it has nothing to do with IE8. Maybe, it was because of the add-on... something wrong with its settings. That's where the problem lies. I had found it strange, when you had first posted about Firefox problem... that other browsers were able to open pages, and not Firefox. There had to be something wrong.
I am now glad its working, and I hope it keeps on that way
.