diff --git a/README.md b/README.md
index e5a03f1..8ed7602 100644
--- a/README.md
+++ b/README.md
@@ -8,8 +8,6 @@ This is a chrome extension that automatically removes furigana from websites bas
 ## Installation
 [Download it from the Chrome Web Store](https://chrome.google.com/webstore/detail/furikani/lbjenjfljjnlkbdfbgmgcnkfnddaeccl)
 
-[Download it from the Firefox Add-On Store](https://addons.mozilla.org/en-US/firefox/addon/furikani/)
-
 ---
 
 ## How to use
diff --git a/VERSIONS.md b/VERSIONS.md
index b4e95f3..c133214 100644
--- a/VERSIONS.md
+++ b/VERSIONS.md
@@ -10,14 +10,4 @@
 ## v0.6.3
  * Startup sync check is now more consistent
  * Level number updates in realtime after sync
- * Fixed bug where internal Kanji list would get reset on sync
-
-# v0.7
- * FuriKani now supports Firefox!
- * Fixed potential innerHTML risks
-
-## v0.7.1
- * Add support for non-static websites
-
-## v0.7.2
- * Explicitly handle ruby tags on initial page load
+ * Fixed bug where internal Kanji list would get reset on sync
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diff --git a/build.sh b/build.sh
old mode 100755
new mode 100644
diff --git a/manifest.json b/manifest.json
index 3223517..ba59a81 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
     "name": "FuriKani",
     "description": "Removes furigana on websites based on your WaniKani level",
-    "version": "0.7.2",
+    "version": "0.6.3",
     "icons": {
         "16": "res/icon16.png",
         "48": "res/icon48.png",
@@ -21,4 +21,4 @@
         "scripts": ["src/background.js"]
     },
     "permissions": ["storage"]
-}
+}
\ No newline at end of file
diff --git a/src/content.js b/src/content.js
index 73a020f..9fb24bd 100644
--- a/src/content.js
+++ b/src/content.js
@@ -19,41 +19,6 @@ var kanjiStyleSheet = document.createElement("style")
 document.head.appendChild(vocabStyleSheet)
 document.head.appendChild(kanjiStyleSheet)
 
-function handleRubyTag(tag, vocabulary, kanji) {
-    // Copy the ruby element into a new ruby element so we can modify it
-    // without modifying the website
-    var ruby = document.createElement("ruby")
-    ruby.innerHTML = tag.innerHTML;
-
-    // Remove all tags (except for <rb>, <span>)
-    while(ruby.lastElementChild)
-    {
-        if(ruby.lastElementChild.tagName.toLowerCase() === "rb" ||
-            ruby.lastElementChild.tagName.toLowerCase() === "span")
-        {
-            ruby.innerHTML = ruby.lastElementChild.innerHTML
-            break
-        }
-
-        ruby.removeChild(ruby.lastElementChild)
-    }
-
-    // If the contents of the <ruby> tag are in the word list, tag the <rt> tag
-    // with the correct class
-    var rtTag = tag.getElementsByTagName("rt").item(0)
-    if(vocabulary.includes(ruby.innerText))
-        rtTag.classList.add("furikani-vocabulary")
-    if(kanji.includes(ruby.innerText))
-        rtTag.classList.add("furikani-kanji")
-}
-
-function removeExistingTags(vocabulary, kanji) {
-    let nodes = document.querySelectorAll("ruby")
-    nodes.forEach((node, _key, _parent) => {
-        handleRubyTag(node, vocabulary, kanji)
-    });
-};
-
 // Get stored word list from chrome storage
 chrome.storage.local.get(["vocabulary", "kanji", "validUserLevel", "enabled", "enabledVocab", "enabledKanji"], (data) => {    
     // The users level is not valid, e.g. it exceeds the maximum allowed level
@@ -74,21 +39,37 @@ chrome.storage.local.get(["vocabulary", "kanji", "validUserLevel", "enabled", "e
     const vocabulary = data.vocabulary
     const kanji = data.kanji
 
-    removeExistingTags(vocabulary, kanji)
+    // Fetch all <ruby> tags on the website
+    var rubyTags = document.body.getElementsByTagName("ruby")
 
-    let observer = new MutationObserver((mutations) => {
-        mutations.forEach((mutation) => {
-            mutation.addedNodes.forEach((node, _key, _parent) => {
-                if (node.tagName?.toLowerCase() !== "ruby") {
-                    return;
-                }
+    for(let tag in rubyTags)
+    {
+        // Copy the ruby element into a new ruby element so we can modify it
+        // without modifying the website
+        var ruby = document.createElement("ruby")
+        ruby.innerHTML = rubyTags.item(tag).innerHTML
 
-                handleRubyTag(node, vocabulary, kanji)
-            })
-        });
-    })
+        // Remove all tags (except for <rb>, <span>)
+        while(ruby.lastElementChild)
+        {
+            if(ruby.lastElementChild.tagName.toLowerCase() === "rb" ||
+                ruby.lastElementChild.tagName.toLowerCase() === "span")
+            {
+                ruby.innerHTML = ruby.lastElementChild.innerHTML
+                break
+            }
 
-    observer.observe(document.documentElement, { subtree: true, childList: true });
+            ruby.removeChild(ruby.lastElementChild)
+        }
+
+        // If the contents of the <ruby> tag are in the word list, tag the <rt> tag
+        // with the correct class
+        var rtTag = rubyTags.item(tag).getElementsByTagName("rt").item(0)
+        if(vocabulary.includes(ruby.innerText))
+            rtTag.classList.add("furikani-vocabulary")
+        if(kanji.includes(ruby.innerText))
+            rtTag.classList.add("furikani-kanji")
+    }
 })
 
 chrome.runtime.onMessage.addListener((msg, sender, sendResponse) => {
@@ -115,4 +96,4 @@ chrome.runtime.onMessage.addListener((msg, sender, sendResponse) => {
     }
 
     return true;
-})
+})
\ No newline at end of file
diff --git a/src/popup.html b/src/popup.html
index 552f71c..f0e235f 100644
--- a/src/popup.html
+++ b/src/popup.html
@@ -6,7 +6,7 @@
 <body>
     <header>
         <h1>FuriKani</h1>
-        <h2>v0.7</h2>
+        <h2>v0.6.3</h2>
     </header>
 
     <div id="token-area">
@@ -53,10 +53,10 @@
     <footer>
         <span id="level-text">Using WaniKani Level <span id="level"></span></span>
 
-        <span id="author" >Made by <a target="_blank" href="https://repos.einweckglas.com/lauchmelder">Lauchmelder</a></span>
-        <a id="source" target="_blank" href="https://repos.einweckglas.com/lauchmelder/FuriKani">Source Code</a>
+        <span id="author" >Made by <a target="_blank" href="https://github.com/Lauchmelder23">Lauchmelder</a></span>
+        <a id="source" target="_blank" href="https://github.com/Lauchmelder23/FuriKani">Source Code</a>
     </footer>
     
     <script src="popup.js"></script>
 </body>
-</html>
+</html>
\ No newline at end of file