Can't install Raindrop extension from Firefox Extension Store ("outdated version of Firefox")

Techcable · May 25, 2023

Steps to reproduce:
Today I tried to download the raindrop.io extension from the Firefox addon store: https://addons.mozilla.org/en-US/firefox/addon/raindropio/

It says "You need an updated version of Firefox for this extension" (see below for image).

I assume this is indicative of some deeper problem. Luckily, the chrome extension store does not give the same message so I can try that...

Expected behavior:
Should install correctly in either store.

Orion, OS version; hardware type:

Image/Video: