Settles the too-jumpy sticky down.
seret.co.il decided to have a sticky top header, which is nice and cool - however, it makes the page jump as you scroll down, which is very annoying.
This extension removes the stickiness and by that, fixes the jump.
Known issue - there is a placeholder for an advertisement that would not be seen under normal circumstances, but when the extensions is installed, it shows up.
I could fix that, but this will have memory implications, so I decided against it.