Bill in Co wrote:
Firefox has dropped support for the older XUL add-on extensions in favor
of the new WebExtensions format, and has removed database access to the
older extensions, which is problematic for some of us, since so many of
those were useful and are NOT ported over to the new format required in
the later versions of Firefox.

My question is, where can you find and get the legacy XUL extensions now?

Apparently one individual took on the task to create a catalog site add on
extension for some of these, but it didn't work for me. But maybe that's
an issue at my end, since I'm now using Firefox Light for most stuff and
haven't tried it on the full blown version yet. Note: it requires adding
an extension that allegedly gives you access to a catalog of the older
Firefox extensions. I'm assuming this in itself is an XUL extension, so
you may not be able to use it on the newer Firefox builds - not sure.

Has anybody had any success in finding a nice archive of all the old XUL
format add on extensions for Firefox? (Again, this probably will only be
useful to those of you not using the latest versions of Firefox). But it
might be useful for Sea Monkey, Pale Moon, and some others.

Here are a couple of reference links for anyone interested.

https://www.trishtech.com/2018/10/us...d-ons-archive/

https://github.com/JustOff/ca-archive/releases

Ooops, looks like this works in Firefox, just not Firefox Light. Oh well,
it may be of interest to those using the older builds, or SeaMonkey or Pale
Moon or some other browsers that use the legacy XUL Firefox add ons.