[ilconsigliere]

From the article:

"Several readers wanted to know how they could access the Other folder on their phones or tablets.

The answer: you can’t. The Facebook apps don’t permit you to see the Other folder. (You can, of course, go to www.facebook.com in your phone or tablet’s Web browser — don’t use the app — to work on the Other folder there.)"

You can on Android: hit the gear symbol next to the 'Messages' menu option in the Facebook app menu

[jonemo]

And you can't really on Android using a web browser (I tried in Firefox). The link to the "Other Messages" folder is underneath the message list, which keeps getting longer (endless list style) as you scroll down.