Some web site developers abuse functionality built into web browsers, apparently in an attempt to be more annoying, and most often as a very aggressive form of advertising. A classic example of this is DeviantArt who track the location of your mouse pointer on a page to pop up irritating little suggestions which prevent you clicking on a link or even seeing it. eBay are bad for this sort of nonsense too. An example on DeviantArt is when viewing a new 'deviation' (piece of art), sometimes/often, if you should choose to click on the 'deviant' name (basically the person who posted it), a 'tip' will pop up which completely obscures the link you were about to click suggesting "No-one's commented yet. Be the first!". It happens an awful lot and it's infuriating, but DeviantArt use this technique all throughout their site tracking your pointer to pop up annoying hints and suggestions as you navigate the site. Now I don't see why sites should feel entitled to know where my mouse pointer is as I move it about a page. The only time my pointer location matters as far as I am concerned is when I choose to either left or right click on something. Even then, it is what I have left/right clicked on, not it's location on the page, which matters. I don't wish for the pointer location to be continuously relayed to the website. Clearly it is a functionality which is built into both the site and the browser that it tracks your pointer, sending a steady stream of position data to the host site. I wish to be able to prevent that. If I were using a touchscreen device there would be no mouse pointer they could spy on yet the sites which abuse this functionality cope just fine with that when I view them on my handheld touchscreen devices. I wish for Firefox to have the functionality to stop this steady stream of mouse pointer coordinates being given to the host site. How is it possible to do this please ? Many thanks!