Firefox status bar

My main Firefox browser that I use at work, which is on an ESR update channel, was finally updated from a pre-Quantum version to version 60.

I found that there is actually a way to get back a status bar, for displaying URLs when hovering over links, rather than having the URLs pop up and disappear:

http://www.optimiced.com/en/2018/02/11/restore-status-bar-in-firefox-quantum/


It sounds like there's even a way to put add-on buttons on the status bar too. But I haven't tried this yet, so I'm not sure:
https://www.reddit.com/r/FirefoxCSS/comments/8bfxji/been_trying_to_revive_the_addon_bar_statuspanel/

Hmmm. I'll need to see if there's a way of changing the status bar color. I don't like it being gray.