Yes it works. I tested with android 6.0 in my sis's moto G as well. So then android multitasking behavior has had subtle changes over the iterations. One thing i noticed was that firefox does this always (downloading pages in background) while the stock browser was unreliable at times. With heavy websites , sometimes it loads in the background , and at other time it reloads. Have you noticed this? One another question is if such background tasks happen in android , what is so different in case of stock browser pausing youtube? Makes me wonder is there differential treatment of apps with respect to multitasking? Phone and other os apps definitely will have differential treatment, but other than that?