Facebook has a website, and it works inside mobile browsers. When are you finding it impossible to use that way?
On FF Android, for me, https://facebook.com/messages redirects to https://m.facebook.com/messages, and just shows a message telling me to get the Messenger app.
It seems to trigger based on the browser window being too small. Yes, it is possible to access messages by requesting the desktop site, but it's pretty inconvenient.
On FF Android, for me, https://facebook.com/messages redirects to https://m.facebook.com/messages, and just shows a message telling me to get the Messenger app.
It seems to trigger based on the browser window being too small. Yes, it is possible to access messages by requesting the desktop site, but it's pretty inconvenient.