Whenever I hover over text or a link a little white rectangle appears under the cursor. This is where information about what I'm hovering over usually appears. If I am hovering over a link then it would tell me what the link will do. For Example: I go to log onto a site. I hover my cursor over the words "log in". The little white box should display something like "Log into the site". Another example is a game I play. When I would hover over a particular part of the screen, information about the building I am hovering over will appear (what it is and its current level). Firefox no longer does this. I have checked and IE does do this. I have tried uninstalling Firefox and reinstalling it and it did not solve the problem. == This happened == Every time Firefox opened == After a recent upgrade (I think)