So I just got a mac...

I noticed I can only subir 5 imágenes at a time on a mac. So I investigated and saw that someone publicado an article, complaining about this, 2 years ago. Has the problem still not been fixed?
And every time I try to subir a gif to the fanart category on a spot, I get redirected to the fanpop homepage. Does this too have to do with the fact that Adobe sucks when it comes to macs?