Dictionariez is a versatile dictionary extension for Firefox that enhances language learning and word lookup capabilities. It allows users to instantly view definitions by double-clicking words, right-click for detailed information, and access their preferred dictionaries without navigating away from their current page. The tool also offers the ability to convert words into Anki Flashcards, facilitating efficient study sessions and vocabulary retention.

The extension features customizable options, including the ability to select preferred dictionaries and set keyboard shortcuts for ease of use. Additionally, it supports both American and British pronunciations, provides auto-completion for search queries, and allows for easy export to Anki. With its open-source nature, users can contribute to its development, making Dictionariez a collaborative tool for language enthusiasts.