Needs an exceptions list Rated 3 out of 5 stars
1. This extension would be useful for me if it had an exceptions list. http://links.scripting.com/ for example freezes Firefox for way too long if Long URL please is enabled.
2. Long URL Please works on some pages with embedded Twitter feeds, but not all.
#2 is okay because I have other tools to expand this or that short URL; but #1 is not okay. I am uninstalling Long URL Please and will check back from time to time to see if an exceptions list has been added.