diff --git a/.github/workflows/macos-alpha-build.yml b/.github/workflows/macos-alpha-build.yml
index da3813d98..bd87357f3 100644
--- a/.github/workflows/macos-alpha-build.yml
+++ b/.github/workflows/macos-alpha-build.yml
@@ -82,7 +82,18 @@ jobs:
           # completly uninstall python3 and python3.12
           brew uninstall --ignore-dependencies python3 python3.12 -f
 
-          brew install python@3.12
+          rm -rf /usr/local/bin/2to3
+          rm -rf /usr/local/bin/2to3-3.12
+          rm -rf /usr/local/bin/idle3
+          rm -rf /usr/local/bin/idle3.12
+          rm -rf /usr/local/bin/pydoc3
+          rm -rf /usr/local/bin/pydoc3.12
+          rm -rf /usr/local/bin/python3
+          rm -rf /usr/local/bin/python3.12
+          rm -rf /usr/local/bin/python3-config
+          rm -rf /usr/local/bin/python3.12-config
+          rm -rf /usr/local/bin/wheel3
+          rm -rf /usr/local/bin/wheel3.12
 
       - name: Bootstrap
         run: |
diff --git a/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css b/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css
index 3575a5884..52165e178 100644
--- a/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css
+++ b/src/browser/base/content/zen-styles/zen-tabs/vertical-tabs.css
@@ -405,7 +405,7 @@
     #TabsToolbar {
       --hovered-verticaltab-width: 20em;
 
-      transition: 200ms, margin 400ms, border-color 0 ease-in-out !important;
+      transition: 200ms, margin 200ms, border-color 0 ease-in-out !important;
       z-index: 1;
       background-repeat: no-repeat !important;
       background-position: center center !important;
@@ -414,6 +414,8 @@
       border-top: 1px solid transparent;
       border-right: 1px solid transparent;
 
+      height: 100%;
+
       border-top-right-radius: var(--zen-border-radius);
       transform: translateY(-1px);
     }
@@ -455,14 +457,7 @@
       background-color: var(--zen-dialog-background);
       border-top-color: var(--zen-colors-border);
       border-right-color: var(--zen-colors-border);
-
-      margin-right: calc((var(--hovered-verticaltab-width) + 10px) * -1) !important;
-    }
-    
-    @media (-moz-bool-pref: "zen.tabs.vertical.right-side") {
-      #TabsToolbar:hover {
-        margin-left: calc((var(--hovered-verticaltab-width) + 10px) * -1) !important;
-      }
+      position: absolute;
     }
 
     #TabsToolbar-customization-target:not(:hover) > #tabbrowser-tabs > #tabbrowser-arrowscrollbox > .tabbrowser-tab > .tab-stack > .tab-content > .tab-label-container {