diff --git a/umbra/behaviors.d/facebook.js b/umbra/behaviors.d/facebook.js
index ecbd65a..e2eb271 100644
--- a/umbra/behaviors.d/facebook.js
+++ b/umbra/behaviors.d/facebook.js
@@ -22,10 +22,67 @@ var umbraAboveBelowOrOnScreen = function(e) {
 
 // comments - 'a.UFIPagerLink > span, a.UFIPagerLink, span.UFIReplySocialSentenceLinkText'
 var UMBRA_THINGS_TO_CLICK_SELECTOR = 'a[href^="/browse/likes"], *[rel="theater"]';
+//div[class="phm pluginLikeboxStream"] = facebook widget embedded in 3rd party pages
+var UMBRA_THINGS_TO_SCROLL_SELECTOR = 'div[class="phm pluginLikeboxStream"]';
+var NUMBER_FAILED_SCROLL_ATTEMPTS_ON_THING_TO_SCROLL_BEFORE_STOP_SCROLLING = 5;
 var umbraAlreadyClicked = {};
+var umbraAlreadyScrolledThing = {};
+var umbraScrolledThingFailedScrollAttempts = {};
 var umbraState = {'idleSince':null,'expectingSomething':null,'bottomReachedScrollY':0};
 
 var umbraIntervalFunc = function() {
+	
+		var thingsToScroll = document.querySelectorAll(UMBRA_THINGS_TO_SCROLL_SELECTOR);
+		var everythingScrolled = true;
+		
+		for (var i = 0; i < thingsToScroll.length; i++) {
+			var target = thingsToScroll[i];
+			
+			if (!(target in umbraAlreadyScrolledThing)) {
+				
+				everythingScrolled = false;
+				
+				console.log("scrolling to " + target.scrollHeight + " on element with nodeName " + target.nodeName + " with id of " + target.id);
+				var lastScrollTop = target.scrollTop;
+				target.scrollTop = target.scrollHeight;
+				
+				umbraState.idleSince = null;
+				
+				if (target.scrollTop >= target.scrollHeight) {
+					umbraAlreadyScrolledThing[target] = true;
+				} 
+				else if (target.scrollTop == lastScrollTop) {
+					if (umbraScrolledThingFailedScrollAttempts[target]) {
+						umbraScrolledThingFailedScrollAttempts[target]++;
+					}
+					else {
+						umbraScrolledThingFailedScrollAttempts[target] = 1;
+					}
+					
+					if (umbraScrolledThingFailedScrollAttempts[target] >= NUMBER_FAILED_SCROLL_ATTEMPTS_ON_THING_TO_SCROLL_BEFORE_STOP_SCROLLING) {
+						umbraAlreadyScrolledThing[target] = true;
+					}
+				}
+				else {
+					//reset failed count on a successful scroll
+					umbraScrolledThingFailedScrollAttempts[target] = 0;
+				}
+			}
+			else {
+				console.log("done scrolling for element with nodeName " + target.nodeName + " with id of " + target.id)
+			} 
+			
+			umbraState.expectingSomething = null;
+		}
+		
+		if (thingsToScroll && thingsToScroll.length > 0 && everythingScrolled) {
+			if (umbraState.idleSince == null) {
+				umbraState.idleSince = Date.now();
+			}
+            
+			return;
+		}
+	
         var closeButtons = document.querySelectorAll('a[title="Close"], a.closeTheater');
         for (var i = 0; i < closeButtons.length; i++) {
                 // XXX closeTheater buttons stick around in the dom after closing, clientWidth>0 is one way to check if they're visible
@@ -75,7 +132,7 @@ var umbraIntervalFunc = function() {
                         }
                 }
         }
-
+        
         if (window.scrollY > umbraState.bottomReachedScrollY) {
                 umbraState.bottomReachedScrollY = window.scrollY;
         }
@@ -105,6 +162,7 @@ var UMBRA_USER_ACTION_IDLE_TIMEOUT_SEC = 10;
 
 // Called from outside of this script.
 var umbraBehaviorFinished = function() {
+	
         if (umbraState.idleSince != null) {
                 var idleTimeMs = Date.now() - umbraState.idleSince;
                 if (idleTimeMs / 1000 > UMBRA_USER_ACTION_IDLE_TIMEOUT_SEC) {