I'm new with Firefox. In my tumblr blog, my color photos show full color in the "posting" tab (page), and show full color in the "archive" tab (page), but appear in Black and White in the main blog tab (page). This neither happens with Internet Explorer, Edge, or Google Chrome, only with Firefox. Is there any way to fix this?? Thanks!!! ... <i>e-mail address removed. don't post it here, we don't do email support.</i>