diff --git a/README.md b/README.md
index 0cbd674..f29e328 100644
--- a/README.md
+++ b/README.md
@@ -271,6 +271,7 @@ We also have optional features to enable support for some Firefox extensions.
 
 	> **Note:** You also need to copy the contents of the file `configuration/extensions/tab-center-reborn.css` into the settings page of Tabcenter-reborn..\
 	> **Note2:** You can also maintain the vertical tab always open with `gnomeTheme.extensions.tabCenterReborn.alwaysOpen`
+ 	> **Note2:** You can disable animation by disabling animation into the extension and adding the flags `gnomeTheme.extensions.tabCenterReborn.animationDisabled`
 	
 ## Known bugs
 
diff --git a/theme/extensions/tab-center-reborn.css b/theme/extensions/tab-center-reborn.css
index 9bacf29..2669c1b 100644
--- a/theme/extensions/tab-center-reborn.css
+++ b/theme/extensions/tab-center-reborn.css
@@ -65,11 +65,13 @@
         width: 30vw !important;
         max-width: 200px !important;
         z-index: 1 !important;
+        animation-timing-function: linear;
         transition: all var(--transition-time) ease var(--delay);
     }
 
     #sidebar-box[sidebarcommand*="tabcenter"]:not(:hover) #sidebar,
     #sidebar-box[sidebarcommand*="tabcenter"]:not(:hover) {
+        animation-timing-function: linear;
         transition: all var(--transition-time) ease 0s;
     }
 
@@ -167,3 +169,18 @@
         }
     }
 }
+
+@media (-moz-bool-pref: "gnomeTheme.extensions.tabCenterReborn.animationDisabled") {
+    #sidebar-box[sidebarcommand*="tabcenter"]:hover #sidebar,
+    #sidebar-box[sidebarcommand*="tabcenter"]:hover {
+        transition: none !important;
+    }
+
+    #sidebar-box[sidebarcommand*="tabcenter"]:not(:hover) #sidebar,
+    #sidebar-box[sidebarcommand*="tabcenter"]:not(:hover) {
+        animation-timing-function: linear;
+        transition: none !important;
+    }
+    
+    
+}