diff --git a/themes/642854b5-88b4-4c40-b256-e035532109df/chrome.css b/themes/642854b5-88b4-4c40-b256-e035532109df/chrome.css
index 792a1f41..e0ec47d6 100644
--- a/themes/642854b5-88b4-4c40-b256-e035532109df/chrome.css
+++ b/themes/642854b5-88b4-4c40-b256-e035532109df/chrome.css
@@ -8,6 +8,37 @@
   }
 }
 
+/* animation smoothness */
+:root:has([mod-sameerasw_zen_animations="0"]) {
+  --mod-sameerasw-zen-animation-smoothness: all 0.15s
+      cubic-bezier(0.175, 0.885, 0.3, 1.3),
+    filter 0.15s ease-in-out, opacity 0.2s ease-in-out !important;
+}
+
+:root:has([mod-sameerasw_zen_animations="1"]) {
+  --mod-sameerasw-zen-animation-smoothness: all 0.25s
+      cubic-bezier(0.175, 0.885, 0.32, 1.35),
+    filter 0.3s ease-in-out, opacity 0.3s ease-in-out !important;
+}
+
+:root:has([mod-sameerasw_zen_animations="2"]) {
+  --mod-sameerasw-zen-animation-smoothness: all 0.4s
+      cubic-bezier(0.175, 0.885, 0.32, 1.55),
+    filter 0.4s ease-in-out, opacity 0.45s ease-in-out !important;
+}
+
+:root:has([mod-sameerasw_zen_animations="3"]) {
+  --mod-sameerasw-zen-animation-smoothness: all 0.25s
+      cubic-bezier(0.575, 0.685, 0.52, 1.55),
+    filter 0.3s ease-in-out, opacity 0.35s ease-in-out !important;
+}
+/* default */
+:root:not(:has([mod-sameerasw_zen_animations])) {
+  --mod-sameerasw-zen-animation-smoothness: all 0.25s
+      cubic-bezier(0.175, 0.885, 0.32, 1.35),
+    filter 0.3s ease-in-out, opacity 0.3s ease-in-out !important;
+}
+
 /* tab tint */
 :root:has([mod-sameerasw_zen_light_tint="1"]) {
   .browserStack {
@@ -41,8 +72,7 @@ hbox.browserSidebarContainer,
 #tabbrowser-tabpanels
   > hbox:not([zen-split="true"]):not(:has(.zen-glance-background)) {
   @media -moz-pref( "mod.sameerasw.zen_tab_switch_anim") {
-    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.35),
-      filter 0.45s ease-in-out, opacity 0.35s ease-in-out !important;
+    transition: var(--mod-sameerasw-zen-animation-smoothness) !important;
     scale: 0.9 !important;
     opacity: 0;
   }
@@ -57,7 +87,7 @@ hbox.browserSidebarContainer,
 /* website switch animations */
 #browser:not(:has(.zen-glance-background)) #tabbrowser-tabpanels {
   @media -moz-pref( "mod.sameerasw.zen_urlbar_zoom_anim") {
-    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.35) !important;
+    transition: var(--mod-sameerasw-zen-animation-smoothness) !important;
   }
 }
 
@@ -155,7 +185,8 @@ tabpanels .browserStack browser {
 }
 
 /* Shared: Soft mask background and shadow */
-#main-window:has([mod-sameerasw_zen_compact_sidebar_type="2"]) #titlebar::before {
+#main-window:has([mod-sameerasw_zen_compact_sidebar_type="2"])
+  #titlebar::before {
   box-shadow: light-dark(#fff3, #0003) 0px -36px 30px 0px inset,
     rgba(0, 0, 0, 0.06) 0px 2px 1px, rgba(0, 0, 0, 0.09) 0px 4px 2px,
     rgba(0, 0, 0, 0.09) 0px 8px 4px, rgba(0, 0, 0, 0.09) 0px 16px 8px,
@@ -173,12 +204,15 @@ tabpanels .browserStack browser {
 }
 
 /* Mask type - left sidebar */
-#main-window:not([zen-right-side="true"]):has([mod-sameerasw_zen_compact_sidebar_type="2"])
+#main-window:not([zen-right-side="true"]):has(
+    [mod-sameerasw_zen_compact_sidebar_type="2"]
+  )
   #zen-main-app-wrapper[zen-compact-mode="true"]:has(
     [zen-user-show=""],
     #navigator-toolbox[zen-has-hover="true"],
     [has-popup-menu=""]
-  ) #tabbrowser-tabpanels {
+  )
+  #tabbrowser-tabpanels {
   mask-image: linear-gradient(
     to right,
     transparent 0,
@@ -189,12 +223,15 @@ tabpanels .browserStack browser {
 }
 
 /* Mask type - right sidebar */
-#main-window[zen-right-side="true"]:has([mod-sameerasw_zen_compact_sidebar_type="2"])
+#main-window[zen-right-side="true"]:has(
+    [mod-sameerasw_zen_compact_sidebar_type="2"]
+  )
   #zen-main-app-wrapper[zen-compact-mode="true"]:has(
     [zen-user-show=""],
     #navigator-toolbox[zen-has-hover="true"],
     [has-popup-menu=""]
-  ) #tabbrowser-tabpanels {
+  )
+  #tabbrowser-tabpanels {
   mask-image: linear-gradient(
     to left,
     transparent 0,
@@ -205,27 +242,34 @@ tabpanels .browserStack browser {
 }
 
 /* Push type - left sidebar */
-#main-window:not([zen-right-side="true"]):has([mod-sameerasw_zen_compact_sidebar_type="1"])
+#main-window:not([zen-right-side="true"]):has(
+    [mod-sameerasw_zen_compact_sidebar_type="1"]
+  )
   #zen-main-app-wrapper[zen-compact-mode="true"]:has(
     [zen-user-show=""],
     #navigator-toolbox[zen-has-hover="true"],
     [has-popup-menu=""]
-  ) #zen-appcontent-wrapper {
+  )
+  #zen-appcontent-wrapper {
   transform: translateX(var(--zen-sidebar-custom-width)) !important;
 }
 
 /* Push type - right sidebar */
-#main-window[zen-right-side="true"]:has([mod-sameerasw_zen_compact_sidebar_type="1"])
+#main-window[zen-right-side="true"]:has(
+    [mod-sameerasw_zen_compact_sidebar_type="1"]
+  )
   #zen-main-app-wrapper[zen-compact-mode="true"]:has(
     [zen-user-show=""],
     #navigator-toolbox[zen-has-hover="true"],
     [has-popup-menu=""]
-  ) #zen-appcontent-wrapper {
+  )
+  #zen-appcontent-wrapper {
   transform: translateX(calc(0px - var(--zen-sidebar-custom-width))) !important;
 }
 
 /* Shared Push Transition (used in both left and right) */
-#main-window:has([mod-sameerasw_zen_compact_sidebar_type="1"]) #zen-appcontent-wrapper {
+#main-window:has([mod-sameerasw_zen_compact_sidebar_type="1"])
+  #zen-appcontent-wrapper {
   --zen-compact-mode-func: linear(
     0 0%,
     0.002748 1%,
@@ -333,7 +377,8 @@ tabpanels .browserStack browser {
 }
 
 /* Push: transparent titlebar */
-#main-window:has([mod-sameerasw_zen_compact_sidebar_type="1"]) #titlebar::before {
+#main-window:has([mod-sameerasw_zen_compact_sidebar_type="1"])
+  #titlebar::before {
   background-color: transparent !important;
   outline: none !important;
   box-shadow: none !important;