diff --git a/.eslintrc b/.eslintrc
index 82e605a..74a50f7 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -16,6 +16,7 @@
     "helpers": true,
     "interceptor": true,
     "mappings": true,
+    "MessageResponse": true,
     "requestAnalyzer": true,
     "requestSanitizer": true,
     "Resource": true,
diff --git a/core/constants.js b/core/constants.js
index f4edd00..2681915 100644
--- a/core/constants.js
+++ b/core/constants.js
@@ -34,6 +34,11 @@ const Header = {
     'REFERER': 'Referer'
 };
 
+const MessageResponse = {
+    'ASYNCHRONOUS': true,
+    'SYNCHRONOUS': false
+};
+
 const Resource = {
     'MAPPING_EXPRESSION': /\.map$/i,
     'VERSION_EXPRESSION': /(?:\d{1,2}\.){1,3}\d{1,2}/,
diff --git a/core/messenger.js b/core/messenger.js
new file mode 100644
index 0000000..4db9f68
--- /dev/null
+++ b/core/messenger.js
@@ -0,0 +1,70 @@
+/**
+ * Messenger
+ * Belongs to Decentraleyes.
+ *
+ * @author      Thomas Rientjes
+ * @since       2018-05-28
+ * @license     MPL 2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+'use strict';
+
+/**
+ * Messenger
+ */
+
+var messenger = {};
+
+/**
+ * Private Methods
+ */
+
+messenger._handleMessageReceived = function (message, sender, sendResponse) {
+
+    let topic, value;
+
+    topic = message.topic;
+    value = message.value;
+
+    if (topic === 'tab:fetch-injections') {
+
+        sendResponse({'value': stateManager.tabs[value].injections});
+        return MessageResponse.SYNCHRONOUS;
+    }
+
+    if (topic === 'domain:fetch-is-whitelisted') {
+
+        let whitelistRecord = requestAnalyzer.whitelistedDomains[value];
+        sendResponse({'value': Boolean(whitelistRecord)});
+
+        return MessageResponse.SYNCHRONOUS;
+    }
+
+    if (topic === 'whitelist:add-domain') {
+
+        stateManager.addDomainToWhitelist(value).then(function () {
+            sendResponse({'value': true});
+        });
+
+        return MessageResponse.ASYNCHRONOUS;
+    }
+
+    if (topic === 'whitelist:remove-domain') {
+
+        stateManager.removeDomainFromWhitelist(value).then(function () {
+            sendResponse({'value': true});
+        });
+
+        return MessageResponse.ASYNCHRONOUS;
+    }
+};
+
+/**
+ * Event Handlers
+ */
+
+chrome.runtime.onMessage.addListener(messenger._handleMessageReceived);
diff --git a/core/state-manager.js b/core/state-manager.js
index 8d4db71..ba7d472 100644
--- a/core/state-manager.js
+++ b/core/state-manager.js
@@ -74,7 +74,7 @@ stateManager.addDomainToWhitelist = function (domain) {
     });
 };
 
-stateManager.deleteDomainFromWhitelist = function (domain) {
+stateManager.removeDomainFromWhitelist = function (domain) {
 
     return new Promise((resolve) => {
 
diff --git a/pages/background/background.html b/pages/background/background.html
index 92ba3c4..0093dbe 100644
--- a/pages/background/background.html
+++ b/pages/background/background.html
@@ -22,6 +22,7 @@
         <script src="../../core/state-manager.js"></script>
         <script src="../../core/request-analyzer.js"></script>
         <script src="../../core/file-guard.js"></script>
+        <script src="../../core/messenger.js"></script>
         <script src="../../core/interceptor.js"></script>
         <script src="../../core/main.js"></script>
 
diff --git a/pages/popup/popup.js b/pages/popup/popup.js
index ac7751b..7dc635e 100644
--- a/pages/popup/popup.js
+++ b/pages/popup/popup.js
@@ -30,11 +30,10 @@ popup._renderContents = function () {
 
     popup._renderNonContextualContents();
 
-    if (popup._backgroundPage !== null) {
-
-        popup._determineTargetTab()
-            .then(popup._renderContextualContents);
-    }
+    popup._determineTargetTab()
+        .then(popup._determineDomainWhitelistStatus)
+        .then(popup._determineResourceInjections)
+        .then(popup._renderContextualContents);
 };
 
 popup._renderNonContextualContents = function () {
@@ -55,24 +54,12 @@ popup._renderNonContextualContents = function () {
 
 popup._renderContextualContents = function () {
 
-    let injections, groupedInjections;
-
-    popup._domain = helpers.extractDomainFromUrl(popup._targetTab.url);
-
-    popup._requestAnalyzer = popup._backgroundPage.requestAnalyzer;
-    popup._stateManager = popup._backgroundPage.stateManager;
-
     if (popup._domain !== null) {
-
-        popup._domain = helpers.normalizeDomain(popup._domain);
         popup._renderDomainWhitelistPanel();
     }
 
-    injections = popup._stateManager.tabs[popup._targetTab.id].injections;
-    groupedInjections = popup._groupResourceInjections(injections);
-
-    if (Object.keys(groupedInjections).length > 0) {
-        popup._renderInjectionPanel(groupedInjections);
+    if (Object.keys(popup._resourceInjections).length > 0) {
+        popup._renderInjectionPanel(popup._resourceInjections);
     }
 };
 
@@ -87,7 +74,7 @@ popup._renderDomainWhitelistPanel = function () {
     protectionToggleElement.setAttribute('dir', popup._scriptDirection);
     domainIndicatorElement.innerText = popup._domain;
 
-    if (popup._requestAnalyzer.whitelistedDomains[popup._domain]) {
+    if (popup._domainIsWhitelisted === true) {
 
         let enableProtectionTitle = chrome.i18n.getMessage('enableProtectionTitle');
 
@@ -119,23 +106,59 @@ popup._renderInjectionPanel = function (groupedInjections) {
 
 popup._enableProtection = function () {
 
-    popup._stateManager.deleteDomainFromWhitelist(popup._domain)
-        .then(popup._onProtectionToggled);
+    let message = {
+        'topic': 'whitelist:remove-domain',
+        'value': popup._domain
+    };
+
+    chrome.runtime.sendMessage(message, function () {
+        popup._onProtectionToggled();
+    });
 };
 
 popup._disableProtection = function () {
 
-    popup._stateManager.addDomainToWhitelist(popup._domain)
-        .then(popup._onProtectionToggled);
+    let message = {
+        'topic': 'whitelist:add-domain',
+        'value': popup._domain
+    };
+
+    chrome.runtime.sendMessage(message, function () {
+        popup._onProtectionToggled();
+    });
 };
 
-popup._determineBackgroundPage = function () {
+popup._determineDomainWhitelistStatus = function () {
 
     return new Promise((resolve) => {
 
-        chrome.runtime.getBackgroundPage(function (backgroundPage) {
+        let message = {
+            'topic': 'domain:fetch-is-whitelisted',
+            'value': popup._domain
+        };
+
+        chrome.runtime.sendMessage(message, function (response) {
+
+            popup._domainIsWhitelisted = response.value;
+            resolve();
+        });
+    });
+};
+
+popup._determineResourceInjections = function () {
+
+    return new Promise((resolve) => {
+
+        let message = {
+            'topic': 'tab:fetch-injections',
+            'value': popup._targetTab.id
+        };
+
+        chrome.runtime.sendMessage(message, function (response) {
+
+            let groupedInjections = popup._groupResourceInjections(response.value);
+            popup._resourceInjections = groupedInjections;
 
-            popup._backgroundPage = backgroundPage;
             resolve();
         });
     });
@@ -148,6 +171,12 @@ popup._determineTargetTab = function () {
         chrome.tabs.query({'active': true, 'currentWindow': true}, function (tabs) {
 
             popup._targetTab = tabs[0];
+            popup._domain = helpers.extractDomainFromUrl(tabs[0].url);
+
+            if (popup._domain !== null) {
+                popup._domain = helpers.normalizeDomain(popup._domain);
+            }
+
             resolve();
         });
     });
@@ -292,8 +321,7 @@ popup._onDocumentLoaded = function () {
     popup._version = helpers.formatVersion(manifest.version);
     popup._scriptDirection = helpers.determineScriptDirection(language);
 
-    popup._determineBackgroundPage()
-        .then(popup._determineAmountInjected)
+    popup._determineAmountInjected()
         .then(popup._renderContents);
 };