Comment 3 for bug 425522

To repost from a different, semi-related question (https://answers.launchpad.net/ubuntu/+source/gwibber/+question/91489):

You can get the filters from facebook, for example I added this code to facebook.py:
self.facebook.filters = self.facebook.stream.getFilters(self.facebook.session_key)
These look like:
{u'filter_key': u'nf', u'is_visible': True, u'uid': 614255489, u'icon_url': u'http://www.facebook.com/images/app_icons/newsfeed.gif', u'rank': 0, u'value': None, u'type': u'newsfeed', u'name': u'News Feed'}

This list should include other custom filters you have made (although I haven't tried it) and it would be simple to request messages with a filter in place. Someone just needs to create the UI to do this.