NB: I DO NOT YET OWN the LEGAL RIGHTS  to modify the Dictionary Tooltip extension for CHROME and FIREFOX. Am due to receive a confirmation or consent to go ahead.Please take time to read The Terms & Conditions page of its developers from http://www.dictionarytip.com/Terms.aspx  or contact rjonna@suchisoft.com  for more information. Description: Dictionary Tooltip is a firefox addon which displays the definition of words in a small tooltip on the same page. You don't have to open a new tab to see the definition. You do not lost the context and showing the definition in a tooltip helps you to focus more on what you were reading.