ブックマークを追加すると、追加したサイトが別ウインドウで開いてしまいます。仕様でしょうか？

The exact solution for the most niche problem I've ever had at work. I only wish I could pin certain bookmarks to the bottom the way the new tab shortcuts are laid out, it'd be perfect!

So useful

It was great when it worked. However, it no longer works with the latest Firefox update v112.0.1

how about bookmarks and HISTORY too.

It would be great add-on if i could use history sidebar instead bookmarks. Add this option please. Thank you.

There are some Firefox limitations that prevent this add-on from functioning fully, but with what is available it is a lovely experience.