How to install a dictionary for Yoono Desktop

If you are using Yoono Desktop, the only dictionary available for spell checking is the one by default : English US.

Installing a new dictionary can be done. It's not very user friendly, but it can be done !

Here's how...
Yoono Desktop should be closed first.

1 - download the dictionary you need : list is :
https://addons.mozilla.org/en-US/firefox/language-tools/

2 - For instance, lets assume you want to download the Spanish dictionary.
Go to its install page :
https://addons.mozilla.org/en-US/firefox/addon/3554/

Right click on the "Add to Firefox" button, and choose the "Save link as" option.

3 - Open the .xpi file you just downloaded with an unzipper (winzip, alzip...)
Under windows you may replace .xpi with .zip and you'll then be able to see it as a compressed folder.

4 - Inside it, go to subdirectory 'dictionaries', and extract the files with extensions .dic and .aff
In our example : es-ES.aff and es-ES.dic

5 - Put these files in the "Yoono Desktop/xulrunner/dictionaries" directory of the Yoono Desktop application directory. It already contains en-US.aff and en-US.dic

6 - Restart Yoono Desktop: when a word is underline because misspelled, a right click will show