Created attachment 681742 [details] Screenshot of flyer opened in Nightly Linking to http://www.flyertown.ca/flyers/toysruscanada?postal_code=M6G+1X6&type=1&sf_any= (which appears to be some kind of online PDF reader, though I'm not 100% sure of that) in Nightly reveals a pretty broken looking page, attached here. By comparison this is what it looks like on Chrome: http://cl.ly/image/2I1p2z2w2h3F Any ideas on what might be causing this, or what we can do here?
Created attachment 682273 [details] Screenshot on desktop with UA switched It does look pretty bad even in desktop with the UA string switched to fennec. I think this is mostly an evangelism issue. There might be some Fennec-specific bugs here too but I don't think they'll be enough to make the site usable. Attached is what I see in desktop with the UA switched and some responsive design resizing of the viewport. I see pretty much the same in my build on Fennec; it looks like the screenshot you posted is missing the image at the bottom but I don't know why. It took a long time to load that image for me, so that might be something that could be improved.