I have a number of browser plugins and many of them operate by manipulating the DOM for a page before rendering. This morning I noticed that one plugin had added its small, clickable icon right over the top of a different small clickable icon, right justified in a form input text box. The result was that there was no way (that I could figure out…) to get at the underlying icon. I’m not enough of a front end guy to know how difficult this layout glitch is to avoid, but it seems like someone didn’t anticipate there could be other elements in the text box, or they needed to take better care to position relative to any such elements.