Close
I use firefox3 without any issues

1) check your ad blocker, some stupid rules would block /ad/ and that's a folder for images depending on md5
2) check your black list in the options page
3) find which server is causing it, we have two of them
3a) if its moe.imouto.org there's a 10 image limit that can be loaded at a time, if you go over it will put you in a waiting queue
3b) likewise on saki.imouto.org, however there is no wait queue and you will return a blank image if you're over 10 images loading at a time

thats all I can say really...