diff --git a/css/style.css b/css/style.css
index 01034eb..64a735b 100644
--- a/css/style.css
+++ b/css/style.css
@@ -184,8 +184,7 @@ body {
     background-color: rgb(201, 202, 203);
 }
 
-.character-copied,
-div#review-message {
+.character-copied, div#review-message, div#opened-addon-message {
     position: fixed;
     bottom: 3px;
     right: 30%;
@@ -201,7 +200,7 @@ div#review-message {
     padding: 5px;
     margin: 0px;
     border: 0px solid transparent;
-    font-weight: bold;
+    font-weight: normal;
     font-family: open-sans, sans-serif;
 }
 
@@ -279,6 +278,14 @@ div#top-message {
     font-size: 16px;
 }
 
+.font-size-18 {
+    font-size: 18px;
+}
+
+.font-size-20 {
+    font-size: 20px;
+}
+
 .font-size-22 {
     font-size: 22px;
 }
@@ -331,13 +338,13 @@ div#top-message {
     margin-top: 20px;
 }
 
-div#review-message {
+div#review-message, div#opened-addon-message {
     top: 5px;
     bottom: auto;
     left: 5px;
     right: 5px;
     padding: 10px;
-    font-size: 18px;
+    font-size: 16px;
     z-index: 10;
     font-weight: bold;
 }
@@ -365,7 +372,7 @@ button.review-button, button.message-button {
     height: 30px;
 }
 
-div#review-message-buttons, div#top-message-buttons {
+div#review-message-buttons, div#top-message-buttons, div.message-buttons-container {
     display: block;
     text-align: right;
     margin: 0px;
@@ -792,4 +799,28 @@ div {
 
 .hidden {
     display: none;
+}
+
+.text-left {
+    text-align: left;
+}
+
+.text-right {
+    text-align: right;
+}
+
+.text-center {
+    text-align: center;
+}
+
+.padding-5 {
+    padding: 5px;
+}
+
+.padding-10 {
+    padding: 10px;
+}
+
+.font-bold {
+    font-weight: bold;
 }
\ No newline at end of file
diff --git a/js/script.js b/js/script.js
index c480cb3..9c1e68a 100644
--- a/js/script.js
+++ b/js/script.js
@@ -60,6 +60,7 @@ function loaded() {
     focusSearchBox();
 
     checkReview();
+    checkOpenedAddon();
     showNewsInRelease();
 }
 
@@ -489,6 +490,44 @@ function showReviewAddonMessage() {
     button_review_now_element.focus();
 }
 
+function showOpenedAddonMessage(numberOpened) {
+    let message_element = document.createElement("div");
+    message_element.id = "opened-addon-message";
+    message_element.innerHTML = "" +
+        "<div class='text-center padding-5'><span class='font-" + font_family + " font-size-20 margin-right-5'>😍</span>" +
+        "You opened this add-on exactly <span class='font-size-20 font-bold'>" + numberOpened + "</span> times from the installation!</div>" +
+        "<div class='text-left padding-5'>If you like the add-on, please consider to buy me a coffee on PayPal to support my work.</div>" +
+        "<div id='opened-addon-message-buttons' class='message-buttons-container text-right'></div>";
+    document.getElementById("popup-content").append(message_element);
+
+    let background_opacity = document.createElement("div");
+    background_opacity.className = "background-opacity";
+    background_opacity.id = "background-opacity-opened-addon";
+    document.getElementById("popup-content").append(background_opacity);
+
+    let button_donate_element = document.createElement("button");
+    button_donate_element.onclick = function () {
+        browserAgentSettings.tabs.create({url: linkDonate[0]});
+        window.close();
+    };
+    button_donate_element.className = "message-button";
+    button_donate_element.id = "opened-addon-button-donate";
+    button_donate_element.innerHTML = "Buy me a coffee on PayPal ☕";
+
+    let button_later_element = document.createElement("button");
+    button_later_element.onclick = function () {
+        hideOpenedAddonMessage();
+    };
+    button_later_element.className = "message-button";
+    button_later_element.id = "opened-addon-button-later";
+    button_later_element.innerHTML = "Maybe another time";
+
+    document.getElementById("opened-addon-message-buttons").append(button_donate_element);
+    document.getElementById("opened-addon-message-buttons").append(button_later_element);
+
+    button_donate_element.focus();
+}
+
 function showMessageTop(text) {
     let message_element = document.createElement("div");
     message_element.id = "top-message";
@@ -573,6 +612,34 @@ function hideReviewMessage() {
     hideElement("background-opacity-review");
 }
 
+function incrementOpenedAddon(value) {
+    value += 1;
+    browserAgentSettings.storage.sync.set({"opened-addon": value}, function () {
+    });
+}
+
+function checkOpenedAddon() {
+
+    browserAgentSettings.storage.sync.get("opened-addon", function (value) {
+        let currentValue = 0;
+        if (value["opened-addon"] != undefined) {
+            currentValue = value["opened-addon"];
+        }
+        incrementOpenedAddon(currentValue);
+
+        currentValue++
+
+        if (currentValue == 1000 || currentValue == 100000 || currentValue == 1000000 || currentValue == 10000000) {
+            showOpenedAddonMessage(currentValue);
+        }
+    })
+}
+
+function hideOpenedAddonMessage() {
+    hideElement("opened-addon-message");
+    hideElement("background-opacity-opened-addon");
+}
+
 function searchEmoji(value) {
     emojis[0] = {};
     let n_results = 0;
diff --git a/manifest.json b/manifest.json
index 159ea49..47b2a4b 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
   "manifest_version": 2,
   "name": "Emoji",
-  "version": "3.9.1",
+  "version": "3.9.2",
   "description": "It permits just with a single click to copy an emoji.",
   "icons": {
     "16": "./img/icon-dark-16.png",