diff --git a/app/build.gradle b/app/build.gradle
index f850ab3fb..63d79d558 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -16,8 +16,8 @@ android {
 		applicationId 'org.koitharu.kotatsu'
 		minSdk = 21
 		targetSdk = 35
-		versionCode = 658
-		versionName = '7.4.1'
+		versionCode = 659
+		versionName = '7.4.2'
 		generatedDensities = []
 		testInstrumentationRunner 'org.koitharu.kotatsu.HiltTestRunner'
 		ksp {
@@ -82,7 +82,7 @@ afterEvaluate {
 }
 dependencies {
 	//noinspection GradleDependency
-	implementation('com.github.KotatsuApp:kotatsu-parsers:3b5a018f8c') {
+	implementation('com.github.KotatsuApp:kotatsu-parsers:ca212ca692') {
 		exclude group: 'org.json', module: 'json'
 	}
 
@@ -95,7 +95,7 @@ dependencies {
 	implementation 'androidx.activity:activity-ktx:1.9.1'
 	implementation 'androidx.fragment:fragment-ktx:1.8.2'
 	implementation 'androidx.transition:transition-ktx:1.5.1'
-	implementation 'androidx.collection:collection-ktx:1.4.2'
+	implementation 'androidx.collection:collection-ktx:1.4.3'
 	implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.8.4'
 	implementation 'androidx.lifecycle:lifecycle-service:2.8.4'
 	implementation 'androidx.lifecycle:lifecycle-process:2.8.4'
@@ -109,7 +109,7 @@ dependencies {
 	implementation 'androidx.lifecycle:lifecycle-common-java8:2.8.4'
 	implementation 'androidx.webkit:webkit:1.11.0'
 
-	implementation 'androidx.work:work-runtime:2.9.0'
+	implementation 'androidx.work:work-runtime:2.9.1'
 	//noinspection GradleDependency
 	implementation('com.google.guava:guava:32.0.1-android') {
 		exclude group: 'com.google.guava', module: 'failureaccess'
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/core/prefs/AppSettings.kt b/app/src/main/kotlin/org/koitharu/kotatsu/core/prefs/AppSettings.kt
index 23df27186..7ca1c78f3 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/core/prefs/AppSettings.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/core/prefs/AppSettings.kt
@@ -704,6 +704,7 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_LOGS_SHARE = "logs_share"
 		const val KEY_APP_UPDATE = "app_update"
 		const val KEY_APP_TRANSLATION = "about_app_translation"
+		const val PROXY_TEST = "proxy_test"
 
 		// old keys are for migration only
 		private const val KEY_IMAGES_PROXY_OLD = "images_proxy"
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/explore/data/MangaSourcesRepository.kt b/app/src/main/kotlin/org/koitharu/kotatsu/explore/data/MangaSourcesRepository.kt
index e2bc04cc2..5965308b8 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/explore/data/MangaSourcesRepository.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/explore/data/MangaSourcesRepository.kt
@@ -61,7 +61,13 @@ class MangaSourcesRepository @Inject constructor(
 	suspend fun getEnabledSources(): List<MangaSource> {
 		assimilateNewSources()
 		val order = settings.sourcesSortOrder
-		return dao.findAllEnabled(order).toSources(settings.isNsfwContentDisabled, order)
+		return dao.findAllEnabled(order).toSources(settings.isNsfwContentDisabled, order).let { enabled ->
+			val external = getExternalSources()
+			val list = ArrayList<MangaSourceInfo>(enabled.size + external.size)
+			external.mapTo(list) { MangaSourceInfo(it, isEnabled = true, isPinned = true) }
+			list.addAll(enabled)
+			list
+		}
 	}
 
 	suspend fun getPinnedSources(): Set<MangaSource> {
@@ -308,8 +314,6 @@ class MangaSourcesRepository @Inject constructor(
 	}
 
 	private fun observeExternalSources(): Flow<List<ExternalMangaSource>> {
-		val intent = Intent("app.kotatsu.parser.PROVIDE_MANGA")
-		val pm = context.packageManager
 		return callbackFlow {
 			val receiver = object : BroadcastReceiver() {
 				override fun onReceive(context: Context?, intent: Intent?) {
@@ -333,15 +337,19 @@ class MangaSourcesRepository @Inject constructor(
 		}.onStart {
 			emit(null)
 		}.map {
-			pm.queryIntentContentProviders(intent, 0).map { resolveInfo ->
-				ExternalMangaSource(
-					packageName = resolveInfo.providerInfo.packageName,
-					authority = resolveInfo.providerInfo.authority,
-				)
-			}
+			getExternalSources()
 		}.distinctUntilChanged()
 	}
 
+	private fun getExternalSources() = context.packageManager.queryIntentContentProviders(
+		Intent("app.kotatsu.parser.PROVIDE_MANGA"), 0,
+	).map { resolveInfo ->
+		ExternalMangaSource(
+			packageName = resolveInfo.providerInfo.packageName,
+			authority = resolveInfo.providerInfo.authority,
+		)
+	}
+
 	private fun List<MangaSourceEntity>.toSources(
 		skipNsfwSources: Boolean,
 		sortOrder: SourcesSortOrder?,
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/pager/webtoon/WebtoonScalingFrame.kt b/app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/pager/webtoon/WebtoonScalingFrame.kt
index 8393aacaf..4ea9f134a 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/pager/webtoon/WebtoonScalingFrame.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/pager/webtoon/WebtoonScalingFrame.kt
@@ -176,8 +176,10 @@ class WebtoonScalingFrame @JvmOverloads constructor(
 		val targetChild = findTargetChild()
 		adjustBounds()
 		targetChild.run {
-			scaleX = scale
-			scaleY = scale
+			if (!scale.isNaN()) {
+				scaleX = scale
+				scaleY = scale
+			}
 			translationX = transX
 			translationY = transY
 			if (pendingScroll != 0) {
@@ -298,7 +300,7 @@ class WebtoonScalingFrame @JvmOverloads constructor(
 			distanceX: Float,
 			distanceY: Float,
 		): Boolean {
-			if (scale <= 1f) return false
+			if (scale <= 1f || scale.isNaN()) return false
 			transformMatrix.postTranslate(-distanceX, -distanceY)
 			invalidateTarget()
 			return true
@@ -323,7 +325,7 @@ class WebtoonScalingFrame @JvmOverloads constructor(
 			velocityX: Float,
 			velocityY: Float,
 		): Boolean {
-			if (scale <= 1) return false
+			if (scale <= 1 || scale.isNaN()) return false
 
 			prevPos.set(transX.toInt(), transY.toInt())
 			overScroller.fling(
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/settings/ProxySettingsFragment.kt b/app/src/main/kotlin/org/koitharu/kotatsu/settings/ProxySettingsFragment.kt
index 4125d46e2..188b9f28c 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/settings/ProxySettingsFragment.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/settings/ProxySettingsFragment.kt
@@ -7,20 +7,40 @@ import android.view.inputmethod.EditorInfo
 import androidx.preference.EditTextPreference
 import androidx.preference.Preference
 import androidx.preference.PreferenceCategory
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
 import dagger.hilt.android.AndroidEntryPoint
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import okhttp3.OkHttpClient
+import okhttp3.Request
 import org.koitharu.kotatsu.R
+import org.koitharu.kotatsu.core.network.BaseHttpClient
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.core.ui.BasePreferenceFragment
+import org.koitharu.kotatsu.core.util.ext.getDisplayMessage
+import org.koitharu.kotatsu.core.util.ext.printStackTraceDebug
+import org.koitharu.kotatsu.core.util.ext.viewLifecycleScope
+import org.koitharu.kotatsu.parsers.util.await
 import org.koitharu.kotatsu.settings.utils.EditTextBindListener
 import org.koitharu.kotatsu.settings.utils.PasswordSummaryProvider
 import org.koitharu.kotatsu.settings.utils.validation.DomainValidator
 import org.koitharu.kotatsu.settings.utils.validation.PortNumberValidator
 import java.net.Proxy
+import javax.inject.Inject
+import kotlin.coroutines.cancellation.CancellationException
 
 @AndroidEntryPoint
 class ProxySettingsFragment : BasePreferenceFragment(R.string.proxy),
 	SharedPreferences.OnSharedPreferenceChangeListener {
 
+	private var testJob: Job? = null
+
+	@Inject
+	@BaseHttpClient
+	lateinit var okHttpClient: OkHttpClient
+
 	override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
 		addPreferencesFromResource(R.xml.pref_proxy)
 		findPreference<EditTextPreference>(AppSettings.KEY_PROXY_ADDRESS)?.setOnBindEditTextListener(
@@ -60,6 +80,15 @@ class ProxySettingsFragment : BasePreferenceFragment(R.string.proxy),
 		super.onDestroyView()
 	}
 
+	override fun onPreferenceTreeClick(preference: Preference): Boolean = when (preference.key) {
+		AppSettings.PROXY_TEST -> {
+			testConnection()
+			true
+		}
+
+		else -> super.onPreferenceTreeClick(preference)
+	}
+
 	override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
 		when (key) {
 			AppSettings.KEY_PROXY_TYPE -> updateDependencies()
@@ -73,5 +102,47 @@ class ProxySettingsFragment : BasePreferenceFragment(R.string.proxy),
 		findPreference<PreferenceCategory>(AppSettings.KEY_PROXY_AUTH)?.isEnabled = isProxyEnabled
 		findPreference<Preference>(AppSettings.KEY_PROXY_LOGIN)?.isEnabled = isProxyEnabled
 		findPreference<Preference>(AppSettings.KEY_PROXY_PASSWORD)?.isEnabled = isProxyEnabled
+		findPreference<Preference>(AppSettings.PROXY_TEST)?.isEnabled = isProxyEnabled && testJob?.isActive != true
+	}
+
+	private fun testConnection() {
+		testJob?.cancel()
+		testJob = viewLifecycleScope.launch {
+			val pref = findPreference<Preference>(AppSettings.PROXY_TEST)
+			pref?.run {
+				setSummary(R.string.loading_)
+				isEnabled = false
+			}
+			try {
+				withContext(Dispatchers.Default) {
+					val request = Request.Builder()
+						.get()
+						.url("http://neverssl.com")
+						.build()
+					val response = okHttpClient.newCall(request).await()
+					check(response.isSuccessful) { response.message }
+				}
+				showTestResult(null)
+			} catch (e: CancellationException) {
+				throw e
+			} catch (e: Throwable) {
+				e.printStackTraceDebug()
+				showTestResult(e)
+			} finally {
+				pref?.run {
+					isEnabled = true
+					summary = null
+				}
+			}
+		}
+	}
+
+	private fun showTestResult(error: Throwable?) {
+		MaterialAlertDialogBuilder(requireContext())
+			.setTitle(R.string.proxy)
+			.setMessage(error?.getDisplayMessage(resources) ?: getString(R.string.connection_ok))
+			.setPositiveButton(android.R.string.ok, null)
+			.setCancelable(true)
+			.show()
 	}
 }
diff --git a/app/src/main/kotlin/org/koitharu/kotatsu/tracker/ui/updates/UpdatesFragment.kt b/app/src/main/kotlin/org/koitharu/kotatsu/tracker/ui/updates/UpdatesFragment.kt
index 73f562648..8fe56b9a3 100644
--- a/app/src/main/kotlin/org/koitharu/kotatsu/tracker/ui/updates/UpdatesFragment.kt
+++ b/app/src/main/kotlin/org/koitharu/kotatsu/tracker/ui/updates/UpdatesFragment.kt
@@ -26,6 +26,7 @@ class UpdatesFragment : MangaListFragment() {
 		return when (item.itemId) {
 			R.id.action_remove -> {
 				viewModel.remove(controller.snapshot())
+				mode.finish()
 				true
 			}
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 1ddbc9e5b..52e423fcf 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -671,4 +671,5 @@
 	<string name="chapters_left">Chapters left</string>
 	<string name="external_source">External/plugin</string>
 	<string name="plugin_incompatible">Incompatible plugin or internal error. Make sure you are using the latest version of the plugin and Kotatsu</string>
+	<string name="connection_ok">Connection is OK</string>
 </resources>
diff --git a/app/src/main/res/xml/pref_proxy.xml b/app/src/main/res/xml/pref_proxy.xml
index 4b0447277..75f530990 100644
--- a/app/src/main/res/xml/pref_proxy.xml
+++ b/app/src/main/res/xml/pref_proxy.xml
@@ -36,4 +36,10 @@
 
 	</PreferenceCategory>
 
+	<Preference
+		android:key="proxy_test"
+		android:persistent="false"
+		android:title="Test connection"
+		app:allowDividerAbove="true" />
+
 </PreferenceScreen>