diff --git a/content.css b/content.css
index 6126768a..c4e8e7bf 100644
--- a/content.css
+++ b/content.css
@@ -1,4 +1,4 @@
-.playerButton {
+.playerButtonImage {
 	height: 60%;
 	top: 0;
 	bottom: 0;
@@ -6,6 +6,10 @@
 	margin: auto;
 }
 
+.playerButton {
+	vertical-align: top;
+}
+
 .sponsorSkipObject {
     font-family: 'Source Sans Pro', sans-serif;
 }
diff --git a/content.js b/content.js
index 1fdccecc..7b5f32dd 100644
--- a/content.js
+++ b/content.js
@@ -117,7 +117,6 @@ function videoIDChange(id) {
 
 function sponsorsLookup(id) {
     v = document.querySelector('video') // Youtube video player
-    let xmlhttp = new XMLHttpRequest();
     
     //check database for sponsor times
     sendRequestToServer('GET', "/api/getVideoSponsorTimes?videoID=" + id, function(xmlhttp) {
@@ -193,13 +192,13 @@ function addPlayerControlsButton() {
 
   let startSponsorButton = document.createElement("button");
   startSponsorButton.id = "startSponsorButton";
-  startSponsorButton.className = "ytp-button";
+  startSponsorButton.className = "ytp-button playerButton";
   startSponsorButton.setAttribute("title", "Sponsor Starts Now");
   startSponsorButton.addEventListener("click", startSponsorClicked);
 
   let startSponsorImage = document.createElement("img");
   startSponsorImage.id = "startSponsorImage";
-  startSponsorImage.className = "playerButton";
+  startSponsorImage.className = "playerButtonImage";
   startSponsorImage.src = chrome.extension.getURL("icons/PlayerStartIconSponsorBlocker256px.png");
 
   //add the image to the button
@@ -269,7 +268,7 @@ function addSubmitButton() {
   //make a submit button
   let submitButton = document.createElement("button");
   submitButton.id = "submitButton";
-  submitButton.className = "ytp-button";
+  submitButton.className = "ytp-button playerButton";
   submitButton.setAttribute("title", "Submit Sponsor Times");
   submitButton.addEventListener("click", submitSponsorTimes);
   //hide it at the start
@@ -277,7 +276,7 @@ function addSubmitButton() {
 
   let submitImage = document.createElement("img");
   submitImage.id = "submitButtonImage";
-  submitImage.className = "playerButton";
+  submitImage.className = "playerButtonImage";
   submitImage.src = chrome.extension.getURL("icons/PlayerUploadIconSponsorBlocker256px.png");
 
   //add the image to the button
diff --git a/manifest.json b/manifest.json
index f0a4ba7b..16797449 100644
--- a/manifest.json
+++ b/manifest.json
@@ -30,7 +30,8 @@
   "permissions": [
     "tabs",
     "storage",
-    "notifications"
+    "notifications",
+    "https://sponsor.ajay.app/*"
   ],
   "browser_action": {
     "default_title": "SponsorBlock",
@@ -49,5 +50,11 @@
     "128": "icons/LogoSponsorBlocker128px.png",
     "256": "icons/LogoSponsorBlocker256px.png"
   },
+  "browser_specific_settings": {
+    "gecko": {
+      "id": "sponsorBlocker@ajay.app",
+      "strict_min_version": "42.0"
+    }
+  },
   "manifest_version": 2
 }