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

how about bookmarks and HISTORY too.

TST Bookmarks Subpanel is an awesome solution to utilizing the mostly empty side panel in conjunction with Tree Style Tabs. This is the one light-mode add on that I think really fits where it sits. Not necessarily a necessity, but its convenience becomes present during normal use.