I usually use my touchpad to scroll through pages by using two fingers swiping up or down on the touchpad. When, afterwards, I want to close a tab (ctrl+w), or move on to a next tab (ctrl+tab) I often end up zooming in or out on the page I just finished.
I found that this is due to the zooming function on the touchpad that also uses two fingers, and is triggered by pressing ctrl whilst making the same motion as with scrolling up or down. The problem is, however, that there seems to be some lag in the touchpad that makes pages zoom in or out AFTER letting go of the touchpad (used for scrolling) and pressing ctrl afterwards. To make things clearer: I can easily manage to zoom in or out by operating the touchpad and the ctrl key with only one hand: first swiping up or down on the touchpad with two fingers, and then pressing ctrl with that same hand.
So instead of opening a new tab, closing a tab or moving to a next tab, I end up zooming in or out the minute I press ctrl (+T/+W/+tab). Would anybody know how to get rid of this "window" that allows zooming after letting go of the touchpad?