I'm having trouble with editing text in mobile Facebook's comment fields - so far, I have only found this to be a problem on m.facebook.com comment fields in Android Firefox. Elsewhere, or in Desktop View, or with a different browser I don't have this problem and I can move my cursor around and make selections and edit text fields no problem. On m.facebook.com comment fields: once I start typing, there's no going back except for using back-space, which is a nuisance! Not being able to move the cursor also means no selecting, copying, pasting, etc...the only options are to type onward or delete backward. This makes comment writing a little bit more of an art for me, but really it's a nuisance. I otherwise prefer Android Firefox so I'd rather find a way to fix this than switch to a different mobile web browser. Any ideas on what could cause this and how to get around it?