Open bookmark manager on startup

I’m a software engineer with decades of experience, have been a Chrome boy primarily for many years, and am seriously considering the switch to Firefox. I already appreciate some Firefox features in the area of tab management such as move (tab) to start (of window) and select all tabs.

One thing I haven’t found to do yet is launch the bookmark manager when I open Firefox. This is how I’ve configured Chrome and I really like it, especially at work. I know, I could just hit alt-shift-O and open the manager but it’s a keyboard chord and, maybe even worse, results in a pop-up window :angry:. I would really like it open automatically in a tab that I can manage along with my other tabs.

Is there a way to do this?