Mozilla automatic page translation Firefox
Every time you visit a website published in a foreign language, popular browsers with a built-in auto-translate feature will prompt you to translate page. Unfortunately, Mozilla Firefox doesn’t have this option by default.
Extension Firefox Translations – adds to the browser translation service. Works similar to how Chrome handles translation notifications. The tool displays the language in which the page is published and gives you the option to translate the page immediately.
If you select this option, the page will be translated into the browser’s default language. It takes a few seconds to translate the page, after which you will immediately see the translated text.
You can use the toolbar to display the original text again at any time, or use the options to define permanent preference. In addition, you can set the translation feature to never translate a specific language or translate content on a specific site.