They don&#x27;t work reliably (some things still autoplay), and sometimes they break the media entirely or don&#x27;t discriminate between things you actually want to autoplay. For example, the one I currently have installed also blocks &quot;gifv&quot; files from autoplaying in the browser, even though there&#x27;s no play button to click on. Every time I click on a reddit link that turns out to be a gifv file on imgur, it stays frozen on the first frame and I have to click on &quot;view image&quot;, manually change the url to &quot;gif&quot;, and reload it. As others here have mentioned, they also tend to break youtube in odd ways. It feels like there are a million little annoyances like that. Back in the &quot;flash era&quot;, click-to-play was effortless.