A new version of Sprucemarks is now available for Microsoft Edge on the Edge Addons site. The first version of Sprucemarks to officially support Edge. ^_^
Besides your trusty Patreon login, you'll need the newer, Chromium based version of Microsoft Edge to use Sprucemarks. The easiest way to tell if you have the newer Edge is by checking your Edge icon which should look like the blue/green wave seen in the image above.
Chrome and Firefox users will also be getting this latest version of Sprucemarks. Besides Edge support, no visible changes, just behind the scenes improvements.
Cheers!