I will look into adding some filtering to the next version of the plugin which I do not currently have an eta for.
If you don’t want to wait then following code should take care of it. Note, I have not tested this.
if ( $item['type'] == 'status' && stristr($item['story'], 'likes a') )
continue;
if ( $item['type'] == 'status' && stristr($item['story'], 'on their own status') )
continue;
Add that to facebook-feed-grabber/facebook.php on line 512 which should be below these two lines of code,
if ( isset($item['status_type']) && $item['status_type'] == 'approved_friend' )
continue;