While I can't say for sure it was that exact extension, I did use something with a very similar name about a year or two ago to completely scrub my Facebook pro

While I can't say for sure it was that exact extension, I did use something with a very similar name about a year or two ago to completely scrub my Facebook profile. Apparently they had renamed it a couple of times, I assume to purge trademarks from the extension name. It worked as advertised, and I deactivated my now-empty account and went on my merry way.