diff --git a/background.js b/background.js
index c5927143..e531869d 100644
--- a/background.js
+++ b/background.js
@@ -5,38 +5,39 @@ chrome.tabs.onUpdated.addListener(function(tabId, changeInfo, tab) {
 });
 
 chrome.runtime.onMessage.addListener(function (request, sender, callback) {
-  if (request.message == "submitTimes") {
-    submitTimes(request.videoID, callback);
-
-    //this allows the callback to be called later by the submitTimes function
-    return true;
-  } else if (request.message == "addSponsorTime") {
-    addSponsorTime(request.time, request.videoID, callback);
-
-    //this allows the callback to be called later
-    return true;
-  } else if (request.message == "getSponsorTimes") {
-    getSponsorTimes(request.videoID, function(sponsorTimes) {
-      callback({
-        sponsorTimes: sponsorTimes
-      })
-    });
-
-    //this allows the callback to be called later
-    return true;
-  } else if (request.message == "submitVote") {
-    submitVote(request.type, request.UUID, callback);
-
-    //this allows the callback to be called later
-    return true;
-  } else if (request.message == "alertPrevious") {
-	  chrome.notifications.create("stillThere" + Math.random(), {
-		  type: "basic",
-		  title: chrome.i18n.getMessage("wantToSubmit") + request.previousVideoID + "?",
-		  message: chrome.i18n.getMessage("leftTimes"),
-		  iconUrl: "./icons/LogoSponsorBlocker256px.png"
-	  });
-  }	
+	switch(request.message) {
+		case "submitTimes":
+			submitTimes(request.videoID, callback);
+			
+			//this allows the callback to be called later by the submitTimes function
+			return true; 
+		case "addSponsorTime":
+			addSponsorTime(request.time, request.videoID, callback);
+			
+			//this allows the callback to be called later
+			return true; 
+		case "getSponsorTimes":
+			getSponsorTimes(request.videoID, function(sponsorTimes) {
+				callback({
+					sponsorTimes: sponsorTimes
+				})
+			});
+			
+			//this allows the callback to be called later
+			return true;
+		case "submitVote":
+			submitVote(request.type, request.UUID, callback);
+			
+			//this allows the callback to be called later
+			return true;
+		case "alertPrevious":
+			chrome.notifications.create("stillThere" + Math.random(), {
+				type: "basic",
+				title: "Do you want to submit the sponsor times for video id " + request.previousVideoID + "?",
+				message: "You seem to have left some sponsor times unsubmitted. Go back to that page to submit them (they are not deleted).",
+				iconUrl: "./icons/LogoSponsorBlocker256px.png"
+			});
+	}
 });
 
 //add help page on install
diff --git a/content.css b/content.css
index 1d118fcf..c05f2f16 100644
--- a/content.css
+++ b/content.css
@@ -1,3 +1,21 @@
+#previewbar {
+    overflow: visible;
+    padding: 0;
+    margin: 0;
+    position: absolute;
+    width: 100%;
+	pointer-events: none;
+	
+	height: 100%;
+	transform: scaleY(0.6) translateY(-30%) translateY(1.5px);
+	z-index: 40;
+}
+
+.previewbar {
+	display: inline-block;
+	height: 100%;
+}
+
 .popup {
     z-index: 10;
     width: 100%;
diff --git a/content.js b/content.js
index 5d433620..eb3b254b 100644
--- a/content.js
+++ b/content.js
@@ -7,18 +7,27 @@ var UUIDs = null;
 //what video id are these sponsors for
 var sponsorVideoID = null;
 
+//these are sponsors that have been downvoted
+var hiddenSponsorTimes = [];
+
 //the time this video is starting at when first played, if not zero
 var youtubeVideoStartTime = null;
 
 //the video
 var v;
 
+var listenerAdded;
+
 //the channel this video is about
 var channelURL;
 
 //is this channel whitelised from getting sponsors skipped
 var channelWhitelisted = false;
 
+// create preview bar
+let progressBar = document.getElementsByClassName("ytp-progress-bar-container")[0] || document.getElementsByClassName("no-model cue-range-markers")[0];
+var previewBar = new PreviewBar(progressBar);
+
 if(id = getYouTubeVideoID(document.URL)){ // Direct Links
   videoIDChange(id);
 }
@@ -102,6 +111,7 @@ function messageListener(request, sender, sendResponse) {
       sendResponse({
         found: sponsorDataFound,
         sponsorTimes: sponsorTimes,
+        hiddenSponsorTimes: hiddenSponsorTimes,
         UUIDs: UUIDs
       });
 
@@ -233,6 +243,9 @@ function videoIDChange(id) {
   sponsorVideoID = id;
   sponsorLookupRetries = 0;
 
+  //empty the preview bar
+  previewBar.set([], [], 0);
+
   //see if there is a video start time
   youtubeVideoStartTime = getYouTubeVideoStartTime(document.URL);
 
@@ -310,6 +323,17 @@ function sponsorsLookup(id) {
       sponsorTimes = JSON.parse(xmlhttp.responseText).sponsorTimes;
       UUIDs = JSON.parse(xmlhttp.responseText).UUIDs;
 
+      //update the preview bar
+      //leave the type blank for now until categories are added
+      console.log(v.duration)
+      if (isNaN(v.duration)) {
+        //wait until it is loaded
+        v.addEventListener('durationchange', updatePreviewBar);
+      } else {
+        //set it now
+        updatePreviewBar();
+      }
+
       getChannelID();
 
       sponsorLookupRetries = 0;
@@ -330,7 +354,7 @@ function sponsorsLookup(id) {
       });
 
       sponsorLookupRetries = 0;
-    } else if (xmlhttp.readyState == 4 && sponsorLookupRetries < 15) {
+    } else if (xmlhttp.readyState == 4 && sponsorLookupRetries < 90) {
       //some error occurred, try again in a second
       setTimeout(() => sponsorsLookup(id), 1000);
 
@@ -344,6 +368,13 @@ function sponsorsLookup(id) {
   };
 }
 
+function updatePreviewBar() {
+  previewBar.set(sponsorTimes, [], v.duration);
+
+  //the listener is only needed once
+  v.removeEventListener('durationchange', updatePreviewBar);
+}
+
 function getChannelID() {
   //get channel id
   let channelContainers = document.querySelectorAll("#owner-name");
@@ -423,7 +454,7 @@ function checkSponsorTime(sponsorTimes, index, openNotice) {
     lastTime = v.currentTime - 0.0001;
   }
 
-  if (checkIfTimeToSkip(v.currentTime, sponsorTimes[index][0])) {
+  if (checkIfTimeToSkip(v.currentTime, sponsorTimes[index][0]) && !hiddenSponsorTimes.includes(index)) {
     //skip it
     skipToTime(v, index, sponsorTimes, openNotice);
 
@@ -934,6 +965,26 @@ function afterDownvote(UUID) {
   //add element to div
   document.getElementById("sponsorTimesVoteButtonsContainer" + UUID).appendChild(thanksForVotingText);
   document.getElementById("sponsorTimesVoteButtonsContainer" + UUID).appendChild(thanksForVotingInfoText);
+
+  //remove this sponsor from the sponsors looked up
+  //find which one it is
+  for (let i = 0; i < sponsorTimes.length; i++) {
+    if (UUIDs[i] == UUID) {
+      //this one is the one to hide
+      
+      //add this as a hidden sponsorTime
+      hiddenSponsorTimes.push(i);
+
+      let sponsorTimesLeft = sponsorTimes.slice();
+      for (let j = 0; j < hiddenSponsorTimes.length; j++) {
+        //remove this sponsor time
+        sponsorTimesLeft.splice(hiddenSponsorTimes[j], 1);
+      }
+
+      //update the preview
+      previewBar.set(sponsorTimesLeft, [], v.duration);
+    }
+  }
 }
 
 function addLoadingInfo(message, UUID) {
diff --git a/manifest.json b/manifest.json
index c121f6ef..b2ea0914 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
   "name": "__MSG_fullName__",
   "short_name": "__MSG_Name__",
-  "version": "1.0.33",
+  "version": "1.0.35",
   "default_locale": "en",
   "description": "__MSG_Description__",
   "content_scripts": [
@@ -12,6 +12,7 @@
       "all_frames": true,
       "js": [
         "config.js",
+        "utils/previewBar.js",
         "utils.js",
         "content.js",
         "popup.js"
diff --git a/popup.js b/popup.js
index 209763e1..76d7dba8 100644
--- a/popup.js
+++ b/popup.js
@@ -54,6 +54,14 @@ function runThePopup() {
   // submitTimesInfoMessage
   "submitTimesInfoMessageContainer",
   "submitTimesInfoMessage",
+  // Username
+  "setUsernameContainer",
+  "setUsernameButton",
+  "setUsernameStatusContainer",
+  "setUsernameStatus",
+  "setUsername",
+  "usernameInput",
+  "submitUsername",
   // More
   "submissionSection",
   "mainControls",
@@ -78,6 +86,8 @@ function runThePopup() {
   SB.showDeleteButtonPlayerControls.addEventListener("click", showDeleteButtonPlayerControls);
   SB.disableSponsorViewTracking.addEventListener("click", disableSponsorViewTracking);
   SB.enableSponsorViewTracking.addEventListener("click", enableSponsorViewTracking);
+  SB.setUsernameButton.addEventListener("click", setUsernameButton);
+  SB.submitUsername.addEventListener("click", submitUsername);
   SB.optionsButton.addEventListener("click", openOptions);
   SB.reportAnIssue.addEventListener("click", reportAnIssue);
   SB.hideDiscordButton.addEventListener("click", hideDiscordButton);
@@ -374,7 +384,14 @@ function runThePopup() {
       for (let i = 0; i < request.sponsorTimes.length; i++) {
         let sponsorTimeButton = document.createElement("button");
         sponsorTimeButton.className = "warningButton popupElement";
-        sponsorTimeButton.innerText = getFormattedTime(request.sponsorTimes[i][0]) + " to " + getFormattedTime(request.sponsorTimes[i][1]);
+
+        let extraInfo = "";
+        if (request.hiddenSponsorTimes.includes(i)) {
+          //this one is hidden
+          extraInfo = " (hidden)";
+        }
+
+        sponsorTimeButton.innerText = getFormattedTime(request.sponsorTimes[i][0]) + " to " + getFormattedTime(request.sponsorTimes[i][1]) + extraInfo;
         
         let votingButtons = document.createElement("div");
   
@@ -973,11 +990,64 @@ function runThePopup() {
     }
   }
   
-  //make the options div visisble
+  //make the options div visible
   function openOptions() {
     document.getElementById("optionsButtonContainer").style.display = "none";
     document.getElementById("options").style.display = "unset";
   }
+
+  //make the options username setting option visible
+  function setUsernameButton() {
+    //get the userID
+    chrome.storage.sync.get(["userID"], function(result) {
+      //get username from the server
+      sendRequestToServer("GET", "/api/getUsername?userID=" + result.userID, function (xmlhttp, error) {
+        if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
+          SB.usernameInput.value = JSON.parse(xmlhttp.responseText).userName;
+
+          SB.submitUsername.style.display = "unset";
+          SB.usernameInput.style.display = "unset";
+
+          SB.setUsernameContainer.style.display = "none";
+          SB.setUsername.style.display = "unset";
+        } else {
+          SB.setUsername.style.display = "unset";
+          SB.submitUsername.style.display = "none";
+          SB.usernameInput.style.display = "none";
+
+          SB.setUsernameStatus.innerText = "Couldn't connect to server. Error code: " + xmlhttp.status;
+        }
+      });
+    });
+  }
+
+  //submit the new username
+  function submitUsername() {
+    //add loading indicator
+    SB.setUsernameStatusContainer.style.display = "unset";
+    SB.setUsernameStatus.innerText = "Loading...";
+
+    //get the userID
+    chrome.storage.sync.get(["userID"], function(result) {
+      sendRequestToServer("POST", "/api/setUsername?userID=" + result.userID + "&username=" + SB.usernameInput.value, function (xmlhttp, error) {
+        if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
+          //submitted
+          SB.submitUsername.style.display = "none";
+          SB.usernameInput.style.display = "none";
+
+          SB.setUsernameStatus.innerText = "Success!";
+        } else if (xmlhttp.readyState == 4 && xmlhttp.status == 400) {
+          SB.setUsernameStatus.innerText = "Bad Request";
+        } else {
+          SB.setUsernameStatus.innerText = getErrorMessage(EN_US, xmlhttp.status);
+        }
+      });
+    });
+
+
+    SB.setUsernameContainer.style.display = "none";
+    SB.setUsername.style.display = "unset";
+  }
   
   //this is not a YouTube video page
   function displayNoVideo() {
diff --git a/popup_en.html b/popup_en.html
index 82c2d66c..0c829494 100644
--- a/popup_en.html
+++ b/popup_en.html
@@ -114,6 +114,31 @@
       
             </div>
 
+            <div id="setUsernameContainer" class="popupElement">
+              <br/>
+              <br/>
+    
+              <button id="setUsernameButton" class="warningButton popupElement">Set Username</button>
+            </div>
+
+            <div id="setUsername" class="popupElement" style="display: none">
+                <br/>
+
+                <h3>Set Username</h3>
+
+                <div id="setUsernameStatusContainer" style="display: none">
+                    <h2 id="setUsernameStatus"></h2>
+                </div>
+
+
+                <input id="usernameInput" hint="Username"></input>
+
+                <br/>
+                <br/>
+
+                <button id="submitUsername" class="warningButton popupElement">Submit Username</button>
+            </div>
+
             <div id="discordButtonContainer" class="popupElement" style="display: none">
               <br/>
 
@@ -121,7 +146,7 @@
 
               <br/>
 
-              Come join the official discord server to give suggestions and feedback!
+                Come join the official discord server to give suggestions and feedback!
 
               <br/>
 
diff --git a/utils/previewBar.js b/utils/previewBar.js
new file mode 100644
index 00000000..95454e9d
--- /dev/null
+++ b/utils/previewBar.js
@@ -0,0 +1,86 @@
+/*
+	This is based on code from VideoSegments.
+	https://github.com/videosegments/videosegments/commits/f1e111bdfe231947800c6efdd51f62a4e7fef4d4/segmentsbar/segmentsbar.js
+*/
+
+'use strict';
+
+let barTypes = {
+	"undefined": {
+		color: "#00d400",
+		opacity: "0.5"
+	},
+	"sponsor": {
+		color: "#00d400",
+		opacity: "0.5"
+	}
+};
+
+class PreviewBar {
+	constructor(parent) {
+		this.container = document.createElement('ul');
+		this.container.id = 'previewbar';
+		this.parent = parent;
+		this.bars = []
+
+		this.updatePosition();
+	}
+
+	updatePosition() {
+		//below the seek bar
+		// this.parent.insertAdjacentElement("afterEnd", this.container);
+		
+		//on the seek bar
+		this.parent.insertAdjacentElement("afterBegin", this.container);
+	}
+
+	updateColor(segment, color, opacity) {
+		let bars = document.querySelectorAll('[data-vs-segment-type=' + segment + ']');
+		for (let bar of bars) {
+			bar.style.backgroundColor = color;
+			bar.style.opacity = opacity;
+		}
+	}
+
+	set(timestamps, types, duration) {
+		while (this.container.firstChild) {
+			this.container.removeChild(this.container.firstChild);
+		}
+
+		if (!timestamps || !types) {
+			return;
+		}
+
+		// to avoid rounding error resulting in width more than 100% 
+		duration = Math.floor(duration * 100) / 100;
+		let width;
+		for (let i = 0; i < timestamps.length; i++) {
+			width = (timestamps[i][1] - timestamps[i][0]) / duration * 100;
+			width = Math.floor(width * 100) / 100;
+
+			let bar = this.createBar();
+			bar.setAttribute('data-vs-segment-type', types[i]);
+
+			bar.style.backgroundColor = barTypes[types[i]].color;
+			bar.style.opacity = barTypes[types[i]].opacity;
+			bar.style.width = width + '%';
+			bar.style.left = (timestamps[i][0] / duration * 100) + "%";
+			bar.style.position = "absolute"
+
+			this.container.insertAdjacentElement('beforeEnd', bar);
+			this.bars[i] = bar;
+		}
+	}
+
+	createBar() {
+		let bar = document.createElement('li');
+		bar.classList.add('previewbar');
+		bar.innerHTML = '&nbsp;';
+		return bar;
+	}
+
+	remove() {
+		this.container.remove();
+		this.container = undefined;
+	}
+}
\ No newline at end of file