diff --git a/extension/_locales/en/messages.json b/extension/_locales/en/messages.json
--- a/extension/_locales/en/messages.json
+++ b/extension/_locales/en/messages.json
@@ -98,6 +98,15 @@
         "message": "This may interfere with the appearance of websites that already apply a custom styling to their scroll bars."
     },
 
+    "options_about_host_version": {
+        "description": "Version of extension native host",
+        "message": "Host version: $1"
+    },
+    "options_about_extension_version": {
+        "description": "Version of browser extension",
+        "message": "Extension version: $1"
+    },
+
     "options_about_copyright": {
         "message": "© 2017-2019 Kai Uwe Broulik and David Edmundson"
     },
diff --git a/extension/extension.js b/extension/extension.js
--- a/extension/extension.js
+++ b/extension/extension.js
@@ -222,6 +222,10 @@
     return sendPortMessageWithReply("settings", "getSubsystemStatus");
 });
 
+addRuntimeCallback("settings", "getVersion", () => {
+    return sendPortMessageWithReply("settings", "getVersion");
+});
+
 addRuntimeCallback("browserAction", "getStatus", (message) => {
     let info = {
         portStatus,
diff --git a/extension/options.html b/extension/options.html
--- a/extension/options.html
+++ b/extension/options.html
@@ -92,6 +92,12 @@
 </div>
 
 <div class="tab" data-tab-id="about">
+
+    <p id="version-info" class="not-supported">
+        <span id="version-info-host" data-i18n="options_about_host_version">I18N</span><br>
+        <span id="version-info-extension" data-i18n="options_about_extension_version">I18N</span>
+    </p>
+
     <p>
         <span data-i18n="options_about_copyright">I18N</span><br>
         <span data-i18n="options_about_license, https://www.gnu.org/licenses/gpl-3.0.de.html" data-i18n-html="true">I18N</span><br>
diff --git a/extension/options.js b/extension/options.js
--- a/extension/options.js
+++ b/extension/options.js
@@ -241,6 +241,20 @@
             console.warn("Failed to determine subsystem status", e);
             document.body.classList.add("startup-failure");
         });
+
+        Promise.all([
+            sendMessage("settings", "getVersion"),
+            chrome.runtime.getManifest()
+        ]).then((results) => {
+            const versionInfo = results[0];
+            const manifest = results[1];
+
+            document.getElementById("version-info-host").innerText = chrome.i18n.getMessage("options_about_host_version",
+versionInfo.host);
+            document.getElementById("version-info-extension").innerText = chrome.i18n.getMessage("options_about_extension_version", manifest.version);
+
+            document.getElementById("version-info").classList.remove("not-supported");
+        });
     });
 
     document.getElementById("open-krunner-settings").addEventListener("click", function (event) {
diff --git a/host/CMakeLists.txt b/host/CMakeLists.txt
--- a/host/CMakeLists.txt
+++ b/host/CMakeLists.txt
@@ -1,5 +1,7 @@
 add_definitions(-DTRANSLATION_DOMAIN=\"plasma-browser-integration-host\")
 
+configure_file(config-host.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config-host.h)
+
 set(HOST_SOURCES main.cpp
                 connection.cpp
                 pluginmanager.cpp
diff --git a/host/config-host.h.cmake b/host/config-host.h.cmake
new file mode 100644
--- /dev/null
+++ b/host/config-host.h.cmake
@@ -0,0 +1 @@
+#define HOST_VERSION_STRING "${PROJECT_VERSION}"
diff --git a/host/settings.cpp b/host/settings.cpp
--- a/host/settings.cpp
+++ b/host/settings.cpp
@@ -30,6 +30,8 @@
 #include "pluginmanager.h"
 #include "settingsadaptor.h"
 
+#include <config-host.h>
+
 const QMap<Settings::Environment, QString> Settings::environmentNames = {
     {Settings::Environment::Chrome, QStringLiteral("chrome")},
     {Settings::Environment::Chromium, QStringLiteral("chromium")},
@@ -154,6 +156,8 @@
            };
            ret.insert(subsystem, details);
         }
+    } else if (event == QLatin1String("getVersion")) {
+        ret.insert(QStringLiteral("host"), QStringLiteral(HOST_VERSION_STRING));
     }
 
     return ret;