Facebook updates via Twitter
Aggiornare lo stato di Facebook con Twitter
You can update your Facebook status via Twitter, using a Facebook application.
Installing “Twitter” app on Facebook
After you’ve logged in Facebook, go to the “Twitter” application’s official page; this page will open:
Click on “Go to application”; you’ll be asked to allow the Twitter app to access your Facebook profile:
Now click on “Allow”; ok, the Twitter app is installed! 
Log into your Twitter account from Facebook
You’ve not yet finished. Once installed, you’ll be redirected to the Twitter application page on Facebook (otherwise, just click on the previous link).
The application will ask you your Twitter username and password: don’t worry, the Twitter app will respect your privacy.
From this page, you can update your Twitter status… but it isn’t this tutorial’s goal (if you want to so, I suggest you to click on “Bookmark Twitter”).
Allow Twitter to update your Facebook status
Now, from the Twitter app’s page, click on “Allow Twitter to update your Facebook status”:
Now you can update your Facebook status via Twitter. 
Pros and cons of Twitter and Facebook synchronization
- benefits:
- you type your message only once, and it will appear both on Twitter and Facebook;
- you can send your tweets to those Facebook friends who don’t use Twitter.
- disadvantage: redundancy. If a friend of yours added you both on its Twitter and Facebook accounts, he’ll read the same message twice.
Example: update both your Twitter and Facebook without opening them, thanks to TwitterFox.
Synchronizing Facebook and Twitter means you can update your Facebook status using third-part Twitter clients, like Twhirl.
If you can’t /don’t want to install Twhirl (which requires Adobe Air), you can use Twitterfox, a handy Firefox add-on.
Handy because, with one simple click on a “link” button, you can insert the current URL on your Tweet… without copying and pasting the URL, o opening the Twitter Home Page. And if someone writes a comment on your tweet via Facebook, you’ll receive an e-mail notification, as usual
Here’s a screenshot of a message wrote on Twitterfox and automatically imported into Facebook:
