CadysDict: Multi-Dictionary Lookup 作者： Gediz

English to English Dictionary: Double-click any word to instantly view definitions from Oxford, Merriam-Webster, and FreeDict in a stylish floating window.

If addon does not show up on double clicking. Please disable your ad-blocker. Then you can figure out what url to omit in your ad-blocker. This is initial version there is a lot of functionality missing.