Maybe you should make one! Oh...

I spent 10 minutes trying to log in using Chromium. It half-way showed that I was logged in, but I couldn't actually sign a petition. Logging in with Iceweasel (Firefox), it worked immediately.

I couldn't sign the petition (two petitions actually) with Firefox.

The maddening thing is that I was already logged in (the telltale at the bottom said so), but the Sign button was disabled.

Sent a complaint.