This add-on can be used as a spell checker, it is not a dictionary that lists words in alphabetical order and gives information about their meanings.

Once installed, type in text and when a word is highlighted in red, you can right click on it and select one of the suggestions.

Note: Includes the names of the 32 states and 2458 municipalities of Mexico.

This spelling dictionary is developed in collaboration with Recursos Lingüísticos Abiertos del Español.

Available for Thunderbird.