Windows 10 - Microsoft Edge Browser and the iGive Button

 
The version of Microsoft Edge released on January 15, 2020 supports the iGive Button.  This version can use browser extensions like the Button that were built for the Google Chrome browser.

Make sure you have the new version of MS Edge.  You can download it here.

Then, head on over to the Chrome Web Store.  If this is the first extension you're installing, you'll need to select Allow extensions from other stores in the banner at the top of the page.  Then, click Add to Chrome.

That's it!