I've been trying to listen to Spotify on Firefox Mobile but it keeps telling me there's an issue, so I went to solve it. I allowed DRM Content because that's what it said the problem was, but now it's saying that I need to enable the "Widevine Plugin". I've tried searching and following directions for it but I cannot find it at all and I still don't know how to enable it. I can listen to spotify just fine on an incognito tab but I don't want to keep signing in every time I close the tab since that's just annoying. I have a Motorola E phone, I don't know if that makes a difference or not. Please help because I literally just want to listen to music on my way to work.