Firefox: Where is the old, sortable about:config?

Update 2024: This does not appear to be working anymore, at least neither on Librewolf nor on Tor-Browser.

At some point Firefox developers "simplified" the Advanced Configuration Editor a.k.a. about:config - one cannot even sort by columns anymore! Which makes it extremely tedious to hunt down user modified settings.

Fortunately, the previous, more useful editor is still available at chrome://global/content/config.xhtml:

Source

And BTW, when you bookmark it, make sure it isn't called "about:config" if you want to find it through the URLbar's search-while-you-type feature. It gets filtered out. Calling it "aboutconfig" helps.