diff --git a/extension/content.js b/extension/content.js
index 091c2e2..a413646 100644
--- a/extension/content.js
+++ b/extension/content.js
@@ -12,7 +12,7 @@
    var snackbar;
    var progressBar;
 
-   var favoriteCourses = 0;
+   var favoriteCourses = localStorage.getItem("favoriteCourses") == "-1" ? -1 : 0;
    var pages = [
       {
          name: 'courses',
@@ -46,6 +46,7 @@
             },
             fab: function() {
                favoriteCourses = Math.abs(favoriteCourses + 1) * -1;
+               localStorage.setItem("favoriteCourses", favoriteCourses.toString());
                setCoursesPortfolios(true, $('#search').is(':visible') ? $('#search').val() : '');
             }
          }
diff --git a/userscript/MDELO.user.js b/userscript/MDELO.user.js
index 3753f9e..3b68e28 100644
--- a/userscript/MDELO.user.js
+++ b/userscript/MDELO.user.js
@@ -31,7 +31,7 @@
    var snackbar;
    var progressBar;
 
-   var favoriteCourses = 0;
+   var favoriteCourses = localStorage.getItem("favoriteCourses") == "-1" ? -1 : 0;
    var pages = [
       {
          name: 'courses',
@@ -65,6 +65,7 @@
             },
             fab: function() {
                favoriteCourses = Math.abs(favoriteCourses + 1) * -1;
+               localStorage.setItem("favoriteCourses", favoriteCourses.toString());
                setCoursesPortfolios(true, $('#search').is(':visible') ? $('#search').val() : '');
             }
          }