It wants the Flash player plugin (see attached screenshot). You can install the latest Flash plugin from this page: https://www.adobe.com/products/flashplayer/distribution3.html In the first table, look for the row for "plugin-based browsers" and you can use either the EXE or the MSI installer. If you don't see the video or a permission message like in my screenshot, check whether Flash is disabled on the Add-ons page. Either: * Ctrl+Shift+a * "3-bar" menu button (or Tools menu) > Add-ons In the left column, click Plugins. On the right side, look for "Shockwave Flash". If it disabled, it will be near the bottom of the list on a grayed background. The normal permission is "Always Activate", but if you want to control when sites use Flash, you can change it to "Ask to Activate". With "Ask to Activate", when you visit a site that wants to use Flash, you should see a notification icon in the address bar and usually (but not always) one of the following: a link in a dark gray rectangle in the page or an infobar sliding down between the toolbar area and the page. The plugin notification icon in the address bar typically looks like a small, dark gray Lego block. (If it's red, Flash needs updating.) If you see a good reason to use Flash, and the site looks trustworthy, you can go ahead and click the notification icon in the address bar to allow Flash. You can trust the site for the time being or permanently. But some pages use Flash only for tracking or playing ads, so if you don't see an immediate need for Flash, feel free to ignore the notification! It will just sit there in case you want to use it later.