This Things AWESOME use it all the time

no longer keeps me logged in despite checking the box

The only extension for a registry I have found that ACTUALLY WORKS! Also allows you to put things on your registry that aren't actual items - such as going to the website of your favorite restaurant and adding the page which would allow someone to purchase a giftcard.

Ever since firefox updated the extension and bookmark no longer work

It works perfectly with all the websites I have tried! So simple, fast, and easy to use. I love it!