x-www-browser doesn't change even after package delete, update-alternatives

[Carl Fink <carl@finknetwork.com>]

So, I removed firefox-esr and replaced it with stable firefox. I ran
update-alternatives to point to firefox-esr. The current listing doesn't
even include firefox-esr:

root@debian-NUCi5:~# update-alternatives --list x-www-browser
/usr/bin/chromium
/usr/bin/epiphany-browser
/usr/bin/firefox
/usr/bin/surf

When I run 'rclone config' this happens:

Failed to execute default Web Browser.

Failed to execute child process "/usr/bin/firefox-esr' (no such file or
directory).

Note that the incorrect punctuation is as shown in the GUI dialog that pops up.

I click OK, and the text-mode rclone (why is the error GUI but the program
itself in the terminal?) sits there saying "waiting for code ..." forever.
Not a graceful way to handle the failure to log into Google, is it?

If rclone isn't looking for the browser in the alternatives, where is it
looking? Firefox-esr hasn't been on this system for weeks. 

I did try launching a fresh Xfce-terminal from the menu, but got the same
error.

Thanks in advance.
-- 
Carl Fink                                                  carl@finknetwork.com 
https://reasonablyliterate.com                           https://nitpicking.com 
If you want to make a point, somebody will take the point and stab you with it. 
	-Kenne Estes