Is anyone else having trouble with a lot of the Javascript on FimFic?

I can't:

• preview posts
• use the image or video shortcut buttons
• add any story to a bookshelf I don't have set as visible by default
• edit my bookshelves
• use my groups page at all (nothing loads)

Strangely enough, I can still add stories to bookshelves I have visible by default, I can edit my user page and tagline. I've tried turning off Greasemonkey, Stylus (formerly Stylish), and/or Ublock Origin, with no change in behavior. (This is in Firefox, but it does the same in Chrome.)