It looked like a locked door with a surveillance camera outside. I understand the need for security and privacy, but it was a little jarring to see it from Mozilla. I'm sure if I can contacted someone for a tour I'd have gotten a better response, but my perception of the organization has changed a little bit.
I know that my team makes a very strong effort to be as inclusive as possible. For example in Rust meetups, which are held at the SF office (and are actually organized by Erick Tryzelaar, who isn't on staff), the whole front space is open.
Mozilla is still a tech organization whose offices are filled with electronic devices that are vulnerable to theft. It wasn't long ago that somebody broke into the Toronto office and stole a bunch of stuff (they left the Windows 8 devices, though).
http://nextcity.org/images/made/images/daily/_resized/img_mo...
I agree, it's outrageous that a door that opens onto the embarcadero be locked when the room is unoccupied, or that the building has a security camera near that door, which happens to be the corner of the building facing the street! Do they expect everyone to go to the main entrance to talk to someone or something?