Can't Authorize Facebook in Gwibber

Whenever I try to add Facebook account in Gwibber, It gives the following error:

**Unable to load page**

Problem occurred while loading the URL https://graph.facebook.com/oauth/authorize?scope=publish_stream%2Cread_stream%2Cstatus_update%2Coffline_access%2Cuser_photos%2Cfriends_photos&redirect_uri=http%3A%2F%2Fwww.facebook.com%2Fconnect%2Flogin_success.html&type=user_agent&display=popup&client_id=71b85c6d8cb5bbb9f1a3f8bbdcdd4b05

**Cannot resolve proxy hostname ()**

How can I fix it?

I got your problem now. Try this few steps:

1. Go to Home folder, then show all hidden files using Ctrl+H.
2. Browse to .config/gwibber.
3. Delete gwibber.sqlite.
4. Now try to connect your Facebook.

Here's what I did:

According to this link:

Currently gwibber seems to expect a direct connection to the net, no use of a proxy. Gwibber should really query gnome for proxy information and use it for connecting to the net. You could also consider using libproxy.

So I went to

System Settings > Network > Network Proxy

and selected "None" in the "Method" box, instead of Automatic or Manual. Then applied it system wide and ta-da! Gwibber now works.

Hope I helped!

EDIT: Added a screenshot for reference