# How to activate your newly installed language

Once the download and the installation has fully completed, you'll need to activate this language for the SeaMonkey user interface.

To activate the new language:

- Select "Preferences..." from the Edit menu
- In the preferences window, expand the "Appearance" category and open the "Languages/Content" panel
- Select the new language and content packs and click OK
- Close all SeaMonkey windows, including eventually activated Quickstart
- After SeaMonkey is started again, the user interface should be in your favourite language