Pre-Requisittes:
- Create Web Application and a "publishing portal" site collection.
- Access "Site Action" -> "Site Settings"
3. Click on "Variations" (in here you can configure variation root site settings and other settings
4. Click on "Variation labels" from the view mentioned in step2
5. Repeat the above 4th step for "fr-FR" label
6. Click "Create Hierarchies" link from "Variations" screen mentioned in Step 4
7. Run the Timer job from Central administration
8. Open new browser and check the Language settings as in screens below.
9. Change the browser language and restart the browser. You will notice that fr-FR related content loading
when language changed to fr-FR and can observe the same behaviour for en-US. Enjoy variations stuff!