2 ms·And two black squares on Firefox beta on my Android 5.1 phone.by abrowne 9y agoAnd two black squares on Firefox beta on my Android 5.1 phone.barrkel 9y agoWorks fine in Firefox Beta (and normal Firefox) on my Android 8 phone.abrowne 9y agoOK, so fixed in up-to-date Android or with a better vendor (mine is TCL [Alcatel branded]).