diff --git a/extension/src/background.ts b/extension/src/background.ts
index b9e5cb96..cfc45f6d 100644
--- a/extension/src/background.ts
+++ b/extension/src/background.ts
@@ -6,16 +6,6 @@ interface Fork {
   rpcUrl: string
 }
 
-chrome.declarativeNetRequest.onRuleMatchedDebug.addListener((details) => {
-  if (details.rule.ruleId !== HEADERS_RULE_ID) {
-    console.debug(
-      'rule matched on request',
-      details.request.url,
-      details.rule.ruleId
-    )
-  }
-})
-
 // Track tabs showing our extension, so we can dynamically adjust the declarativeNetRequest rule.
 // This rule removes some headers so foreign pages can be loaded in iframes. We don't want to
 // generally circumvent this security mechanism, so we only apply it to extension tabs.
@@ -125,7 +115,6 @@ const toggle = async (tab: chrome.tabs.Tab) => {
     })
   }
 }
-chrome.action.onClicked.addListener(toggle)
 
 // Track extension tabs that are actively simulating, meaning that RPC requests are being sent to
 // a fork network.
@@ -246,35 +235,6 @@ const removeRpcRedirectRules = (tabId: number) => {
   console.log('removed all RPC redirect rules for tab', tabId, ruleIds)
 }
 
-chrome.runtime.onMessage.addListener((message, sender) => {
-  if (!sender.tab?.id) return
-
-  if (message.type === 'startSimulating') {
-    const { networkId, rpcUrl } = message
-    simulatingExtensionTabs.delete(sender.tab.id)
-    removeRpcRedirectRules(sender.tab.id)
-    simulatingExtensionTabs.set(sender.tab.id, {
-      networkId,
-      rpcUrl,
-    })
-    updateRpcRedirectRules(sender.tab.id)
-
-    console.debug(
-      `start intercepting JSON RPC requests for network #${networkId} in tab #${sender.tab.id}`,
-      rpcUrl
-    )
-  }
-
-  if (message.type === 'stopSimulating') {
-    simulatingExtensionTabs.delete(sender.tab.id)
-    removeRpcRedirectRules(sender.tab.id)
-
-    console.debug(
-      `stop intercepting JSON RPC requests in tab #${sender.tab.id}`
-    )
-  }
-})
-
 // Keep track of the network IDs for all JSON RPC endpoints used from apps in the Pilot frame
 const networkIdOfRpcUrlPerTab = new Map<
   number,
@@ -361,20 +321,63 @@ const getJsonRpcBody = (details: chrome.webRequest.WebRequestBodyDetails) => {
   return json
 }
 
-chrome.tabs.onUpdated.addListener(function (tabId, changeInfo, tab) {
-  const isExtensionTab = !!tab.url?.startsWith(PILOT_URL)
-  const wasExtensionTab = activeExtensionTabs.has(tabId)
+chrome.runtime.onInstalled.addListener(() => {
+  chrome.action.onClicked.addListener(toggle)
 
-  if (isExtensionTab && !wasExtensionTab) {
-    startTrackingTab(tabId)
-  }
-  if (!isExtensionTab && wasExtensionTab) {
-    stopTrackingTab(tabId)
-  }
+  chrome.declarativeNetRequest.onRuleMatchedDebug.addListener((details) => {
+    if (details.rule.ruleId !== HEADERS_RULE_ID) {
+      console.debug(
+        'rule matched on request',
+        details.request.url,
+        details.rule.ruleId
+      )
+    }
+  })
 
-  if (changeInfo.status === 'complete' && isExtensionTab) {
-    chrome.tabs.sendMessage(tabId, { type: 'navigationDetected' })
-  }
+  chrome.runtime.onMessage.addListener((message, sender) => {
+    if (!sender.tab?.id) return
+
+    if (message.type === 'startSimulating') {
+      const { networkId, rpcUrl } = message
+      simulatingExtensionTabs.delete(sender.tab.id)
+      removeRpcRedirectRules(sender.tab.id)
+      simulatingExtensionTabs.set(sender.tab.id, {
+        networkId,
+        rpcUrl,
+      })
+      updateRpcRedirectRules(sender.tab.id)
+
+      console.debug(
+        `start intercepting JSON RPC requests for network #${networkId} in tab #${sender.tab.id}`,
+        rpcUrl
+      )
+    }
+
+    if (message.type === 'stopSimulating') {
+      simulatingExtensionTabs.delete(sender.tab.id)
+      removeRpcRedirectRules(sender.tab.id)
+
+      console.debug(
+        `stop intercepting JSON RPC requests in tab #${sender.tab.id}`
+      )
+    }
+  })
+
+  chrome.tabs.onUpdated.addListener(function (tabId, changeInfo, tab) {
+    const isExtensionTab = !!tab.url?.startsWith(PILOT_URL)
+    const wasExtensionTab = activeExtensionTabs.has(tabId)
+
+    if (isExtensionTab && !wasExtensionTab) {
+      startTrackingTab(tabId)
+    }
+    if (!isExtensionTab && wasExtensionTab) {
+      stopTrackingTab(tabId)
+    }
+
+    if (changeInfo.status === 'complete' && isExtensionTab) {
+      chrome.tabs.sendMessage(tabId, { type: 'navigationDetected' })
+    }
+  })
 })
 
 export {}
diff --git a/extension/src/bridge/SafeAppBridge.ts b/extension/src/bridge/SafeAppBridge.ts
index 02f599ed..4fd43a41 100644
--- a/extension/src/bridge/SafeAppBridge.ts
+++ b/extension/src/bridge/SafeAppBridge.ts
@@ -49,6 +49,7 @@ export const SAFE_APP_WHITELIST = [
   'https://curve.fi',
   'https://app.spark.fi',
   'https://community.safe.global',
+  'https://app.nexusmutual.io',
 ]
 
 export default class SafeAppBridge {