Has there been an update to discourse recently?
I haven’t been able to reply to posts (haven’t tried making new posts) on Firefox Mobile on Android.
The editor frame comes up and I can type in it, but I can’t actually submit it. The button does nothing.
There has been some updates, and this is distressing news. 
@darix is having a look with me now to see if we find something.
Could you elaborate on hardware/software details in case we need to push it upstream to discourse?
I just tried updating to see if some recent changes address the issue. Could you refresh and try again for me?
Let’s see if the desktop version works… It’s not working in the default mobile view.
Yeah, requesting the desktop version makes it work even on mobile.
I’ve been able to replicate the problem using emulation in Chrome. I’ve reported it upstream to see if it’s something they can fix easily - I’ll wait for the fix to get pushed and update asap (I’ll come back here when this gets done).
Thanks for reporting this! 
chrome mobile testing
Please test again I did another small update.
Chrome mobile testing from iOS 9.
Firefox mobile back in mobile mode on Android 4.4
aaaand it works!