Are you there for know how to add Facebook Widget in blogger, Yes you are right place i will show you how to create Facebook Widget in blogger in theme.
So let talk how to add Facebook Widget in blogger without wasting time
Go the the Facebook plugin
Scroll down and select Page Plugin
Click on website
eplace you page user name with Facebook
Set Width and Height
Click on Get Code
You will get above type of code
Copy First section's code
Open Blogger Dashboard.
Go to the Theme
Click Down Arrow
Click on Edit HTML
Paste First Section's Code Before </body> tag
Click on Save and Go Back
Go to the Layout
Click on Add a Gadget and Add HTML/Javascript
Write Facebook in title Section (You Can write anything whatever you want)
Paste Second Code in Content Box
Save it
Go to the your website and see
Your Facebook Page has been Add in your blogger site
Leave you Feedback
Best Wishes
InnocentAmit