With this addon you can translate any text to your own language with one click or hot-key. You can either translate the selected text, this way the translated text will overwrite the original selected text, or you can translate the full page too. By default, Google Translator for Firefox will try to set your detected language for the default target language. If it is not possible then English will be the target language of the translation. It's highly recommended to select less text than more, otherwise the translation would appear slower. You can select a maximum of 38000-character long text, if you select longer, you'll get an alert box in some cases. You shouldn't either select pictures and tables because these will disappear and mystic text will appear there. Now, let's see, how it works. Firstly, you search something that you don't understand because it's in an other language. Secondly, you select this section or sentence. Now you can go three ways: Right-click with the mouse and click on "Translate this text with Google Translate" text. Click on the Toolbar/Statusbar icon. Press the hot-key. As soon as the translation-progress starts, the Red T will become green, and as soon as the translation ends, it'd be red again. Within a second or two, you'll see that the selection disappears and a text in your language appears there. That's all. Google Translator for Firefox is easy for use extension. Or, if you want to translate the full page, you can go with the three ways mentioned above, too.