diff --git a/css/leptonChrome.css b/css/leptonChrome.css
index 158af24d..0e9f855e 100644
--- a/css/leptonChrome.css
+++ b/css/leptonChrome.css
@@ -13175,6 +13175,12 @@
     }
   }
   /*= Floorp Browser ===========================================================*/
+  #ssbPageAction-image {
+    list-style-image: url("chrome://browser/skin/install-ssb.svg");
+  }
+  #ssbPageAction-image[open-ssb="true"] {
+    list-style-image: url("chrome://browser/skin/install-ssb.svg");
+  }
   @supports -moz-bool-pref("userChrome.icon.panel") {
     #rebootappmenu {
       list-style-image: url("../icons/refresh-cw.svg");
@@ -13182,6 +13188,15 @@
     #openprofiledir {
       list-style-image: var(--uc-folder-icon);
     }
+    #appMenu-ssb-button {
+      list-style-image: url("chrome://browser/skin/install-ssb.svg");
+    }
+    #appMenu-install-or-open-ssb-current-page-button {
+      list-style-image: url("chrome://browser/skin/install-ssb.svg");
+    }
+    #appMenu-install-or-open-ssb-current-page-button[open-ssb="true"] {
+      list-style-image: url("chrome://browser/skin/install-ssb.svg");
+    }
   }
   @supports -moz-bool-pref("userChrome.icon.menu") {
     #toggle_sharemode {
@@ -28273,6 +28288,14 @@
     --menuitem-image: url("chrome://browser/skin/onion.svg");
   }
 }
+@media not (-moz-bool-pref: "userChrome.icon.disabled") {
+  #ssbPageAction-image {
+    list-style-image: url("chrome://browser/skin/install-ssb.svg");
+  }
+  #ssbPageAction-image[open-ssb="true"] {
+    list-style-image: url("chrome://browser/skin/install-ssb.svg");
+  }
+}
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.panel") {
   #rebootappmenu {
     list-style-image: url("../icons/refresh-cw.svg");
@@ -28280,6 +28303,15 @@
   #openprofiledir {
     list-style-image: var(--uc-folder-icon);
   }
+  #appMenu-ssb-button {
+    list-style-image: url("chrome://browser/skin/install-ssb.svg");
+  }
+  #appMenu-install-or-open-ssb-current-page-button {
+    list-style-image: url("chrome://browser/skin/install-ssb.svg");
+  }
+  #appMenu-install-or-open-ssb-current-page-button[open-ssb="true"] {
+    list-style-image: url("chrome://browser/skin/install-ssb.svg");
+  }
 }
 @media (not (-moz-bool-pref: "userChrome.icon.disabled")) and (-moz-bool-pref: "userChrome.icon.menu") {
   #toggle_sharemode {
diff --git a/css/leptonChromeESR.css b/css/leptonChromeESR.css
index d2324d83..f5c88fac 100644
--- a/css/leptonChromeESR.css
+++ b/css/leptonChromeESR.css
@@ -13784,6 +13784,12 @@
     }
   }
   /*= Floorp Browser ===========================================================*/
+  #ssbPageAction-image {
+    list-style-image: url("chrome://browser/skin/install-ssb.svg");
+  }
+  #ssbPageAction-image[open-ssb="true"] {
+    list-style-image: url("chrome://browser/skin/install-ssb.svg");
+  }
   @supports -moz-bool-pref("userChrome.icon.panel") {
     #rebootappmenu {
       list-style-image: url("../icons/refresh-cw.svg");
@@ -13791,6 +13797,15 @@
     #openprofiledir {
       list-style-image: var(--uc-folder-icon);
     }
+    #appMenu-ssb-button {
+      list-style-image: url("chrome://browser/skin/install-ssb.svg");
+    }
+    #appMenu-install-or-open-ssb-current-page-button {
+      list-style-image: url("chrome://browser/skin/install-ssb.svg");
+    }
+    #appMenu-install-or-open-ssb-current-page-button[open-ssb="true"] {
+      list-style-image: url("chrome://browser/skin/install-ssb.svg");
+    }
   }
   @supports -moz-bool-pref("userChrome.icon.menu") {
     #toggle_sharemode {
diff --git a/src/icons/fork_browsers/_floorp.scss b/src/icons/fork_browsers/_floorp.scss
index 1e6e15bb..e9986f03 100644
--- a/src/icons/fork_browsers/_floorp.scss
+++ b/src/icons/fork_browsers/_floorp.scss
@@ -1,3 +1,12 @@
+// Page Action button. Not always visible
+#ssbPageAction-image {
+  list-style-image: url("chrome://browser/skin/install-ssb.svg");
+  &[open-ssb="true"] {
+    // Page Action button. If page has been already installed or can be install PWA
+    list-style-image: url("chrome://browser/skin/install-ssb.svg");
+  }
+}
+
 @include Option("userChrome.icon.panel") {
   #rebootappmenu {
     list-style-image: url("../icons/refresh-cw.svg");
@@ -6,6 +15,20 @@
   #openprofiledir {
     list-style-image: var(--uc-folder-icon);
   }
+
+  // Panel UI top button
+  #appMenu-ssb-button {
+    list-style-image: url("chrome://browser/skin/install-ssb.svg");
+  }
+
+  // Panel UI subView button  for install ssb
+  #appMenu-install-or-open-ssb-current-page-button {
+    list-style-image: url("chrome://browser/skin/install-ssb.svg");
+    &[open-ssb="true"] {
+      // Panel UI subView button  for open ssb window
+      list-style-image: url("chrome://browser/skin/install-ssb.svg");
+    }
+  }
 }
 @include Option("userChrome.icon.menu") {
   #toggle_sharemode {