This is an add-on where you can search easily online. First select the text what you want to search and right click on it. This will prompt a menu, here you can select a option "Find meaning online", this will prompt another sub menu where you can select your search option. Here there is Google, Dictionary.com and Wikipedia. Depending on your need you can select the search option. For example, if you want to find a meaning of a word select Dictionary.com or definition use Wikipedia or to search in general use Google. Once you select your preferred option, a new tab will open and the search will be displayed.