Same, I thought it couldn't be just me. If you open the inspector you'll see in the Console tab a lot of "Loading failed for the <script> with source ..." messages. If you follow the links you'll see that they return 404.

Edit: on Chrome and derived browsers all scripts load correctly except the signIn.js script.

Hey there! I'm so sorry you're experiencing this. At Toucan we really truly want to help the whole world learn something new without having to disrupt their browsing experience. That being said, however, we are currently optimized for Chrome as we're currently a Chrome Extension only, but our intention is to build out extensions for other major browsers soon, and we will certainly up our game on browser support for our website. In the meantime, we'll be working on setting up a regression testing suite across the most popular browsers and ad blockers mentioned in this post to provide you all with a better experience. Again, I really appreciate the feedback and detailed explanations here, this will help tremendously as we build out these test suites and better Toucan.

At the time of this comment the majority of other comments are all about how the page doesn't work. It is broken for me in Firefox, Chrome, and mobile safari. I don't understand how a page this broken makes it to the #13 slot of HN.

Yeah, there's something on the site that's being blocked by my ublock. Turning it off revived the page for me.

Update: it's not ublock. Tried refreshing a few times with ublock enabled and it works. I think it was just an unstable cdn somewhere

Get the same with Firefox. Tried it with Chrome and it works. Makes me sad :(

Also what I’m seeing in mobile Safari.