Hello again Dave,

I immediately went to see if I could find out something about that search engine, but it is not listed on addons.mozilla.org ....

Then I checked numerous discogs forum threads, and they are all ancient (like 12 - 15 years old).

Unless you want that search engine for Thunderbird (which I doubt), cause I did find discogs search engine for Thunderbird :

https://addons.thunderbird.net/en-us/firefox/addon/discogs-com-search/

I found this (15-yo) thread :

http://forums.mozillazine.org/viewtopic.php?f=7&t=197215

I really wouldn't know how to add that search engine to the One-Click Search Engines - I'm hoping that someone else will come to your rescue (sorry .... )

Just in case this will help :

https://support.mozilla.org/en-US/kb/add-or-remove-search-engine-firefox

I found it on add-ons.mozilla.org after all - earlier I clicked on the "Discogs.com Search Engine", and got the "Oops! We can’t find that page".

https://addons.mozilla.org/en-US/firefox/addon/search-on-discogs-context-menu/

But when I go to the support site : that doesn't make any sense to me .....

Hi McCoy, It was the Thunderbird one I wanted! It does exactly what I want and I had used it for a long time before this, I also found the Google Image Search that I wanted too. Thank you again!!!

Awww ...... I am so glad that it turned out to be the Thunderbird
version you were looking for !

Have a nice day (if the corona craziness will let you .... )