It seems likely that you chose the "always" option instead of "just once" when you opened a cache with your browser. I'm not sure how to undo this, though.
I use that conversion link all the time, but now I get a '404 Page not found' when I use a saved link. I hope Groundspeak bring it back, as some puzzles require using it!
What an awesome way to start a day! I'd love to join in, although I too will be among the 'slow-pokes' lagging behind. Will definitely try to make this.