diff --git a/app/src/main/java/eu/kanade/tachiyomi/source/online/all/MangaDex.kt b/app/src/main/java/eu/kanade/tachiyomi/source/online/all/MangaDex.kt
index 65115b46f..ec488ae18 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/source/online/all/MangaDex.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/source/online/all/MangaDex.kt
@@ -95,6 +95,8 @@ class MangaDex(delegate: HttpSource, val context: Context) :
 
     private fun dataSaver() = sourcePreferences.getBoolean(getDataSaverPreferenceKey(mdLang.lang), false)
     private fun usePort443Only() = sourcePreferences.getBoolean(getStandardHttpsPreferenceKey(mdLang.lang), false)
+    private fun blockedGroups() = sourcePreferences.getString(getBlockedGroupsPrefKey(mdLang.lang), "").orEmpty()
+    private fun blockedUploaders() = sourcePreferences.getString(getBlockedGroupsPrefKey(mdLang.lang), "").orEmpty()
 
     private val mangadexService by lazy {
         MangaDexService(client)
@@ -187,11 +189,11 @@ class MangaDex(delegate: HttpSource, val context: Context) :
     }
 
     override fun fetchChapterList(manga: SManga): Observable<List<SChapter>> {
-        return mangaHandler.fetchChapterListObservable(manga)
+        return mangaHandler.fetchChapterListObservable(manga, blockedGroups(), blockedUploaders())
     }
 
     override suspend fun getChapterList(manga: MangaInfo): List<ChapterInfo> {
-        return mangaHandler.getChapterList(manga)
+        return mangaHandler.getChapterList(manga, blockedGroups(), blockedUploaders())
     }
 
     override fun fetchPageList(chapter: SChapter): Observable<List<Page>> {
@@ -316,5 +318,17 @@ class MangaDex(delegate: HttpSource, val context: Context) :
         fun getStandardHttpsPreferenceKey(dexLang: String): String {
             return "${standardHttpsPortPref}_$dexLang"
         }
+
+        private const val blockedGroupsPref = "blockedGroups"
+
+        fun getBlockedGroupsPrefKey(dexLang: String): String {
+            return "${blockedGroupsPref}_$dexLang"
+        }
+
+        private const val blockedUploaderPref = "blockedUploader"
+
+        fun getBlockedUploaderPrefKey(dexLang: String): String {
+            return "${blockedUploaderPref}_$dexLang"
+        }
     }
 }
diff --git a/app/src/main/java/exh/md/handlers/MangaHandler.kt b/app/src/main/java/exh/md/handlers/MangaHandler.kt
index fe7002d00..85b57427b 100644
--- a/app/src/main/java/exh/md/handlers/MangaHandler.kt
+++ b/app/src/main/java/exh/md/handlers/MangaHandler.kt
@@ -50,14 +50,20 @@ class MangaHandler(
         }
     }
 
-    fun fetchChapterListObservable(manga: SManga): Observable<List<SChapter>> = runAsObservable {
-        getChapterList(manga.toMangaInfo()).map { it.toSChapter() }
+    fun fetchChapterListObservable(manga: SManga, blockedGroups: String, blockedUploaders: String): Observable<List<SChapter>> = runAsObservable {
+        getChapterList(manga.toMangaInfo(), blockedGroups, blockedUploaders).map { it.toSChapter() }
     }
 
-    suspend fun getChapterList(manga: MangaInfo): List<ChapterInfo> {
+    suspend fun getChapterList(manga: MangaInfo, blockedGroups: String, blockedUploaders: String): List<ChapterInfo> {
         return withIOContext {
             val results = mdListCall {
-                service.viewChapters(MdUtil.getMangaId(manga.key), lang, it)
+                service.viewChapters(
+                    MdUtil.getMangaId(manga.key),
+                    lang,
+                    it,
+                    blockedGroups,
+                    blockedUploaders
+                )
             }
 
             val groupMap = getGroupMap(results)
diff --git a/app/src/main/java/exh/md/service/MangaDexService.kt b/app/src/main/java/exh/md/service/MangaDexService.kt
index 2ec8b193a..791910853 100644
--- a/app/src/main/java/exh/md/service/MangaDexService.kt
+++ b/app/src/main/java/exh/md/service/MangaDexService.kt
@@ -17,6 +17,8 @@ import exh.md.dto.StatisticsDto
 import exh.md.utils.MdApi
 import exh.md.utils.MdConstants
 import exh.md.utils.MdUtil
+import exh.util.dropEmpty
+import exh.util.trimAll
 import okhttp3.CacheControl
 import okhttp3.Headers
 import okhttp3.HttpUrl.Companion.toHttpUrl
@@ -106,10 +108,14 @@ class MangaDexService(
         ).await().parseAs(MdUtil.jsonParser)
     }
 
+    private fun String.splitString() = replace("\n", "").split(',').trimAll().dropEmpty()
+
     suspend fun viewChapters(
         id: String,
         translatedLanguage: String,
         offset: Int,
+        blockedGroups: String,
+        blockedUploaders: String
     ): ChapterListDto {
         val url = MdApi.manga.toHttpUrl()
             .newBuilder()
@@ -126,6 +132,12 @@ class MangaDexService(
                 addQueryParameter("contentRating[]", "pornographic")
                 addQueryParameter("translatedLanguage[]", translatedLanguage)
                 addQueryParameter("offset", offset.toString())
+                blockedGroups.splitString().forEach {
+                    addQueryParameter("excludedGroups[]", it)
+                }
+                blockedUploaders.splitString().forEach {
+                    addQueryParameter("excludedUploaders[]", it)
+                }
             }
             .build()
             .toString()