Silent install signed XPI from addons store

Apologies if this is the wrong area - is it possible with the most recent versions of Firefox to silently install a signed XPI (from the addons site) from the command line ?

Specifically on Windows 7 / 10 ?

Many thanks for your time!

Not really, no: https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Alternative_distribution_options/Sideloading_add-ons

That’s a pity.
I was going to look at Sikuli as an option but requires JRE on each machine. I’ll speak to our IT department about using the registry or other options.

Thanks Martin