Bunch of buttons on SG are broken on Waterfox(firefox based browser)

Looks like a bunch of buttons on the site are broken on Waterfox.
Including:
-"Submit Comment"
-"Create Ticket"
-"Review Giveaway"
-"Create Discussion"

I can use the site just fine and can enter giveaways, but at least the buttons I mentioned don't work.
Nothing happens when I click them.

I would think the site has been tested to work on firefox? Waterfox should work pretty much exactly as firefox. I've never run into a problem like this on any other sites.

Chrome works fine. Haven't tested on Firefox.

Any ideas?

Edit:
Looks like the text in the comment text field does disappear and the page does load something when I click "Submit Comment". The comment just doesn't get posted.
Another weird one: I CAN make a second comment on a giveaway that I have already commented in (using chrome for the first comment) ???