use the Chrome browser in different tongues: not the same for windows/mac.

http://www.google.com/support/chrome/bin/answer.py?hl=en&answer=95416&from=95415&rd=1

Google Chrome's font and language settings let you read the web and use the browser in your native tongue. Follow these steps to change these settings:

1. Click the wrench icon  on the browser toolbar.
2. Select Options (Preferences on Mac and Linux).
3. Click the Under the Hood tab and go to the "Web Content" section. Here are the various settings you can adjust.

In Windows, follow these steps to change this setting:

• Click Languages and spell-checker settings to open the "Language and Input" dialog.
• Select the language you'd like to use from the list. If the language isn't listed, first add it as one of your preferred webpage languages.
• On the right panel, click Display Google Chrome in this language.
• Restart the browser to apply the changes.

On a Mac, the browser interface language is determined by the Language - Text setting in System Preferences. 

1. Change your native tongue to english (for example)
2. Load chrome (now it is in english).
3. Quit chrome and change english to your native tongue.