|User since||February 18, 2010|
|Number of add-ons developed||0 add-ons|
|Average rating of developer's add-ons||Not yet rated|
Rated 5 out of 5 stars
A smart little extension that makes a lot of sense.
Possibly it could be even better if it had the option to also look for "live" versions of the desired page, by querying e.g. undeadlinks.org or some such site for the lookup.