diff --git a/tcf_website/static/common/recently_viewed.js b/tcf_website/static/common/recently_viewed.js
index a4926d152..3c53df3c9 100644
--- a/tcf_website/static/common/recently_viewed.js
+++ b/tcf_website/static/common/recently_viewed.js
@@ -67,11 +67,25 @@ function saveCourseInfoIfPresent() {
   previousPaths.unshift(currentUrl);
   previousPathsTitles.unshift(title);
 
-  // Keep only the top 10 items
+  // Only display last 10 items
   if (previousPaths.length > 10) {
-    previousPaths = previousPaths.slice(0, 10);
+    // previousPaths = previousPaths.slice(0, 10);
     previousPathsTitles = previousPathsTitles.slice(0, 10);
   }
+  // Prevent too many courses from being stored, max 20
+  if (previousPaths.length > 20) {
+    previousPaths = previousPaths.slice(0, 20);
+    previousPathsTitles = previousPathsTitles.slice(0, 20);
+  }
+
+  
+  if (previousPaths.length % 5 === 0 && previousPaths.length >= 10) {
+    // Check if URL matches .../course/[letters]/[numbers] and ends there
+    const courseRegex = /course\/[a-zA-Z]+\/\d+\/?$/;
+    if (courseRegex.test(currentUrl)) {
+      $('#viewLimitModal').modal('show');
+    }
+  }
 
   // Save back to localStorage
   localStorage.setItem("previous_paths", JSON.stringify(previousPaths));
diff --git a/tcf_website/templates/base/index.html b/tcf_website/templates/base/index.html
index 73d53549c..d87e5959b 100644
--- a/tcf_website/templates/base/index.html
+++ b/tcf_website/templates/base/index.html
@@ -73,6 +73,9 @@
   <!-- Adblock modal -->
   {% include "common/adblock_modal.html" %}
 
+  <!-- View limit modal -->
+  {% include "common/view_limit_modal.html" %}
+
   <!-- Google Tag Manager (noscript) -->
   <noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-54T5TXX"
   height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
diff --git a/tcf_website/templates/common/view_limit_modal.html b/tcf_website/templates/common/view_limit_modal.html
new file mode 100644
index 000000000..1237bb50b
--- /dev/null
+++ b/tcf_website/templates/common/view_limit_modal.html
@@ -0,0 +1,15 @@
+<!-- View limit modal (imported in index.html) -->
+{% load static %}
+<div class="modal fade" id="viewLimitModal" tabindex="-1" role="dialog" aria-labelledby="viewLimitModalLabel"
+     aria-hidden="true" data-backdrop="static" data-keyboard="false">
+    <div class="modal-dialog modal-dialog-centered" role="document">
+        <div class="modal-content">
+            <div class="modal-body text-center pt-4 pb-4">
+                <img src="{% static 'base/img/new_logo.svg' %}" alt="theCourseForum" class="img-fluid mb-3" style="max-height: 60px;">
+                <h5 class="mb-3">You've viewed a lot of courses!</h5>
+                <p class="mb-4">Consider making a review to help others students like you.</p>
+                <button type="button" class="btn btn-primary bg-tcf-indigo pl-4 pr-4" data-dismiss="modal">Close</button>
+            </div>
+        </div>
+    </div>
+</div>