SidePal by River Young

Access multiple web dictionaries, ChatGPT, Urban Dictionary, Collins English, Cambridge English and many more directly from the Firefox's sidebar with SidePal.

Seamlessly integrated into Firefox, SidePal provides a streamlined and efficient way to enhance your language skills and boost productivity.

Key Features:

1. Instant Word Lookup: Double-click any word on a web page to instantly look it up in SidePal.
2. Comprehensive Dictionary Access: Explore multiple dictionaries for any language, ensuring a thorough understanding.
3. Customizable Shortcuts: Tailor keyboard shortcuts and configurations to fit your workflow.
4. Word History & Ratings: Keep track of your word history and rate words for personalized learning.

Beside, it's all open-source: https://github.com/pnlpal/dictionariez/tree/sidepal

Note: SidePal is derived from Dictionariez and serves as a lighter version of the original. For the full range of features and enhanced functionality, we recommend trying Dictionariez: https://github.com/pnlpal/dictionariez/