LEO Dictionaries

This is the official add-on for easier access to LEOs Online Dictionaries. Select any word or phrase, right-click on the selection and translate from/to English, French, Spanish, Italian, Chinese, Russian, Portuguese and Polish to/from German.

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LEO Dictionaries is available to install from Firefox Browser Add-ons and for download from this page. It has 5,739 active users The latest version is 3.4.2resigned1, and it was published 16 days ago.

All available versions

You can find the current and older versions of LEO Dictionaries here. You can download the archived versions or inspect their source codes.

As a free user, you can only download the latest version.

How to install LEO Dictionaries from an XPI file

1. Simply drag-and-drop the XPI into Firefox to install the add-on.

How to install LEO Dictionaries from a ZIP file

1. Download the LEO Dictionaries ZIP file
2. In Firefox browser, go to about:addons to open Add-ons Manager
3. Click on , then select Install Add-on From File
4. Select the LEO Dictionaries ZIP file from step 1. LEO Dictionaries is now installed on your browser.