I chalked my experiences like seeing an ad for something I was talking about with friends to coincidence, but after hearing the same experience from several, I'

I chalked my experiences like seeing an ad for something I was talking about with friends to coincidence, but after hearing the same experience from several, I'm starting to think FaceBook is every bit creepy as one imagines. Facebook Application was booted from my phone long time ago. Facebook runs within "FaceBook container" in Firefox on laptop. Regular web browsing occurs in Safari.