Puntuado con 5 de 5 estrellas
Wanted to write this on the support forums but the captcha there wouldn't let me register, so here it is.
Version 0.4.0 doesn't open new tabs when middle-clicking on a bookmark from the All-in-One Sidebar.
It does for me.
contact me at my mail firstname.lastname@example.org
i will try to figure out the what cause it to fail for you