[dspillett]

In a way that works well on low power mobile devices?

Most people I know using FB messenger do so on desktop via facebook.com and the app on mobile. I don't see them removing the former any time soon but if the web only version still exists for mobile users perhaps that will go.

[eythian]

You can't use the web version on mobile, it tells you to install the app.

[stevage]

Or if you have to use desktop mode in your browser...