Cool tool but it shouldn't matter whether the client is a browser or not. I feel sad that we need such a tool in the real world
About six months ago I went to a government auction site that required Internet Explorer. Yes, Internet Explorer. The site was active, too; the auction data was up-to-date. I added a user-agent extension in Chrome, switched to IE, retried and it worked; all functionality on the site was fine. So yeah, I was both sad and annoyed. My guess is this government office paid for a website 25 years ago and it hasn't been updated since.