At first when I ran into this problem, I barely thought anything about it, but now the issue is starting to interfere with a website I'm making, and I'm trying to better understand what's going on, so that users to my website (who use Firefox for mobile) don't have to see the wrong font. This started yesterday when I was choosing a specific font to be shown on Blogger. When I got more curious about the problem, I thought it was on Blogger's end, but while researching, I found out that numerous people have this problem with multiple sites, and they all use Firefox for mobile. But I didn't happen to run into any solutions or explanations. If you need me to be very specific, I'm using Firefox for Android (latest) to view Blogger using the 'Play' font that Blogger provides in it's customizer. When I look at my site (via the mobile template Blogger automatically provides), the font shown isn't Play. I'm pretty sure it's not Roboto or Droid Sans either, so I don't think this is on Android's end. For proof, I brought along 3 screenshots. PC, desktop view: http://i.imgur.com/9z7s40o.png PC, Android user agent: http://i.imgur.com/UOGRD3u.png Android, FF app: http://i.imgur.com/KFrVSal.png So why is this happening? Is there any way I can prevent the wrong font showing by default, or do my users have to view it in this font?