Very simple needs a bit more work to be useful at least for me. I will detail my suggestions on github. Thank you for creating it.

Like bookmarks, but less oppressive. No issues yet.

After three weeks of testing all my links are suddenly gone. No idea why. Did a Firefox update wipe out the list? IDK. They are gone and I have no idea why, how, or when :( Now using 'In My Pocket' add-on instead :/