when I play blitz on my laptop sometimes on every move the piece moves forward and backward before it reachs the destination square. I think I lose also time with this annoying behavior. What is the reason and how can I avoid it.
I use firefox as browser.
Have you tried using a different browser?
There are known issues with Chrome extensions ...
and toolbars ... (see technical-difficulties, sticky-cursor)
Also, have you tried clearing the browser cache …