diff --git a/app/src/main/java/org/mozilla/fenix/FenixApplication.kt b/app/src/main/java/org/mozilla/fenix/FenixApplication.kt
index f1f8aa437..dc4cecb98 100644
--- a/app/src/main/java/org/mozilla/fenix/FenixApplication.kt
+++ b/app/src/main/java/org/mozilla/fenix/FenixApplication.kt
@@ -5,10 +5,7 @@
 package org.mozilla.fenix
 
 import android.annotation.SuppressLint
-import android.app.ActivityManager
 import android.app.Application
-import android.content.Context
-import android.os.Process
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
@@ -18,6 +15,8 @@ import mozilla.components.service.fretboard.storage.flatfile.FlatFileExperimentS
 import mozilla.components.support.base.log.Log
 import mozilla.components.support.base.log.logger.Logger
 import mozilla.components.support.base.log.sink.AndroidLogSink
+import mozilla.components.support.ktx.android.content.isMainProcess
+import mozilla.components.support.ktx.android.content.runOnlyInMainProcess
 import mozilla.components.support.rustlog.RustLog
 import org.mozilla.fenix.components.Components
 import java.io.File
@@ -34,7 +33,7 @@ open class FenixApplication : Application() {
         setupLogging(megazordEnabled)
         setupCrashReporting()
 
-        if (!isMainProcess(this)) {
+        if (!isMainProcess()) {
             // If this is not the main process then do not continue with the initialization here. Everything that
             // follows only needs to be done in our app's main process and should not be done in other processes like
             // a GeckoView child process or the crash handling process. Most importantly we never want to end up in a
@@ -130,25 +129,11 @@ open class FenixApplication : Application() {
             false
         }
     }
-}
 
-/**
- * Are we running in the main process?
- *
- * Let's move this code to Android Components:
- * https://github.com/mozilla-mobile/android-components/issues/2207
- */
-private fun isMainProcess(context: Context): Boolean {
-    val pid = Process.myPid()
-
-    val activityManager = context.getSystemService(Context.ACTIVITY_SERVICE)
-        as ActivityManager
-
-    activityManager.runningAppProcesses?.forEach { processInfo ->
-        if (processInfo.pid == pid) {
-            return processInfo.processName == context.packageName
+    override fun onTrimMemory(level: Int) {
+        super.onTrimMemory(level)
+        runOnlyInMainProcess {
+            components.core.sessionManager.onLowMemory()
         }
     }
-
-    return false
 }
diff --git a/app/src/main/java/org/mozilla/fenix/browser/BrowserFragment.kt b/app/src/main/java/org/mozilla/fenix/browser/BrowserFragment.kt
index eb4a4073b..5c8cfd823 100644
--- a/app/src/main/java/org/mozilla/fenix/browser/BrowserFragment.kt
+++ b/app/src/main/java/org/mozilla/fenix/browser/BrowserFragment.kt
@@ -4,7 +4,6 @@
 
 package org.mozilla.fenix.browser
 
-import android.content.ComponentCallbacks2
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
@@ -56,7 +55,7 @@ import org.mozilla.fenix.ext.share
 import org.mozilla.fenix.mvi.ActionBusFactory
 import org.mozilla.fenix.mvi.getAutoDisposeObservable
 
-class BrowserFragment : Fragment(), BackHandler, ComponentCallbacks2 {
+class BrowserFragment : Fragment(), BackHandler {
     private lateinit var toolbarComponent: ToolbarComponent
 
     private val sessionFeature = ViewBoundFeatureWrapper<SessionFeature>()
@@ -284,10 +283,6 @@ class BrowserFragment : Fragment(), BackHandler, ComponentCallbacks2 {
         promptsFeature.withFeature { it.onActivityResult(requestCode, resultCode, data) }
     }
 
-    override fun onTrimMemory(level: Int) {
-        requireComponents.core.sessionManager.onLowMemory()
-    }
-
     // This method triggers the complexity warning. However it's actually not that hard to understand.
     @SuppressWarnings("ComplexMethod")
     private fun handleToolbarItemInteraction(action: SearchAction.ToolbarMenuItemTapped) {