Great add-in!!
It could be better if it was option to save links (right click menu)..

It is great but I just wish it used an another folder to store items which have been read.

I would like to reimplement the function that was in the past version.
Keyboard shortcut to open in sidebar, favicon of bookmark. Correct operation of wheel click.
That was the reason that Save-To-Read is the best.

Click on the "+" in the URL bar, and it adds the bookmark, and you can open your bookmarks in the side pannel. It's easy and OK, and very simple, but too basic for me, I'm looking for tags, and a sync function! Answer to the dev: how to sync? My FF is synced but it doesn't seem to sync S.T.Read. I use Save-to-read-later for the moment, as it sync by its own.