What just happened?

The video and ad switched places.

Have any Roblox extensions?

I think my friend got this due to ad block. Do you have ad block at all?

I do, but this is the first time it happened.

If I recall correctly it’s actually a chrome bug. Something about iframes being switched.

Yes, it’s a bug in Chrome: https://code.google.com/p/chromium/issues/detail?id=395791 . There’s a possible javascript fix, but it really should be fixed by the Chrome team.