Are you using GreaseMonkey 3?

3.2 to be exact.

Try removing the script, restarting and the installing it again. See if that works.

Tried that same thing

Is this your personal bookmark?

Happens on my bookmarks and every artist's bookmarks (e.g http://www.pixiv.net/bookmark.php?id=1908386 )

How do you log in (Pixiv third party site like google)

Straight via pixiv

Do you have any extensions that mess around with refer

No idea what it means but here is a list of all my installed addons http://pastebin.com/NSattx9m

Re: @TimidScript:

Firefox 39 and version 3.2.75b http://puu.sh/iTOKi/cf645c51dc.png

coloring scheme

Lovely default settings ;)

Autopaging broken on "Bookmarks", can only view the first page thumbnails

This is on Firefox 39.