diff --git a/README.md b/README.md
index 8ed7602..e5a03f1 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,8 @@ 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 c133214..b4e95f3 100644
--- a/VERSIONS.md
+++ b/VERSIONS.md
@@ -10,4 +10,14 @@
 ## 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
\ No newline at end of file
+ * 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
diff --git a/build.sh b/build.sh
old mode 100644
new mode 100755
diff --git a/manifest.json b/manifest.json
index ba59a81..3223517 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
     "name": "FuriKani",
     "description": "Removes furigana on websites based on your WaniKani level",
-    "version": "0.6.3",
+    "version": "0.7.2",
     "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 9fb24bd..73a020f 100644
--- a/src/content.js
+++ b/src/content.js
@@ -19,6 +19,41 @@ 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
@@ -39,37 +74,21 @@ chrome.storage.local.get(["vocabulary", "kanji", "validUserLevel", "enabled", "e
     const vocabulary = data.vocabulary
     const kanji = data.kanji
 
-    // Fetch all <ruby> tags on the website
-    var rubyTags = document.body.getElementsByTagName("ruby")
+    removeExistingTags(vocabulary, kanji)
 
-    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
+    let observer = new MutationObserver((mutations) => {
+        mutations.forEach((mutation) => {
+            mutation.addedNodes.forEach((node, _key, _parent) => {
+                if (node.tagName?.toLowerCase() !== "ruby") {
+                    return;
+                }
 
-        // 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
-            }
+                handleRubyTag(node, vocabulary, kanji)
+            })
+        });
+    })
 
-            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")
-    }
+    observer.observe(document.documentElement, { subtree: true, childList: true });
 })
 
 chrome.runtime.onMessage.addListener((msg, sender, sendResponse) => {
@@ -96,4 +115,4 @@ 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 f0e235f..552f71c 100644
--- a/src/popup.html
+++ b/src/popup.html
@@ -6,7 +6,7 @@
 <body>
     <header>
         <h1>FuriKani</h1>
-        <h2>v0.6.3</h2>
+        <h2>v0.7</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://github.com/Lauchmelder23">Lauchmelder</a></span>
-        <a id="source" target="_blank" href="https://github.com/Lauchmelder23/FuriKani">Source Code</a>
+        <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>
     </footer>
     
     <script src="popup.js"></script>
 </body>
-</html>
\ No newline at end of file
+</html>