The Mac OS X Dictionary Add-On is a Firefox extension (add-on) that allows Mac OS X users to use the built-in Dictionary Application to look up definitions.
Thanks to everyone for all the feedback, feature requests and especially problem reports! The application works with Leopard (OS X 10.5.X) and Tiger (OS X 10.4.X). Please let me know if you encounter any problems using Mac OS X Dictionary Add-On by sending feedback.
This is free software. However, if you find this add-on useful, please consider making a contribution by clicking the "Donate" button.
dict:///[word]URL to display the word.
I experimented with some of the existing Firefox add-ons from doing dictionary look ups and, while they were good, I wanted something which was more integrated into Mac OS X. Additionally, none of the add-ons I tried allow me to look up a word without highlighting it. Highlighting takes me too much time, especially when the word you want to highlight is part of a link.
This add-on automatically determines the word located under your mouse or looks up the highlighted (a.k.a. selected) word. Thanks to rikaichan for ideas on how to determine the text under the mouse cursor.
Look Up "built-in" in Dictionary.
Look Up "encounter" in Dictionary.
A status bar icon () is displayed by default. If you Left-Click on the status bar icon, you will see the following popup menu.
dict:///[word]URL would only start Dictionary if it wasn't running. The URL wouldn't actually perform the dictionary lookup. This option will force the URL to be sent twice to Dictionary.