I advise you to check this blogpost to set your facebook feed:
If you want to display your company's feed on your website you can use the Twitter widget. Please see this video
for further reference.
In general the twitter feed widget allows you more flexibility in terms of development due to the API keys generated by twitter. You also need to register a twitter application with your site's name as explained in our documentation
I hope this helps. Please if you still cannot make this work, please write me back to help you further with this request.
Do you want to have your say in the Sitefinity development roadmap? Do you want to know when a feature you requested is added or when a bug fixed? Explore the Telerik Public Issue Tracking
system and vote to affect the priority of the items