diff --git a/src/kitemviews/kfileitemmodelrolesupdater.cpp b/src/kitemviews/kfileitemmodelrolesupdater.cpp
--- a/src/kitemviews/kfileitemmodelrolesupdater.cpp
+++ b/src/kitemviews/kfileitemmodelrolesupdater.cpp
@@ -100,8 +100,27 @@
 
     const KConfigGroup globalConfig(KSharedConfig::openConfig(), "PreviewSettings");
     m_enabledPlugins = globalConfig.readEntry("Plugins", QStringList()
+                                                         << QStringLiteral("audiothumbnail")
+                                                         << QStringLiteral("comicbookthumbnail")
+                                                         << QStringLiteral("djvuthumbnail")
+                                                         << QStringLiteral("marble_thumbnail_shp")
+                                                         << QStringLiteral("exrthumbnail")
                                                          << QStringLiteral("directorythumbnail")
+                                                         << QStringLiteral("fontthumbnail")
+                                                         << QStringLiteral("marble_thumbnail_gpx")
+                                                         << QStringLiteral("marble_thumbnail_geojson")
+                                                         << QStringLiteral("htmlthumbnail")
                                                          << QStringLiteral("imagethumbnail")
+                                                         << QStringLiteral("jpegthumbnail")
+                                                         << QStringLiteral("marble_thumbnail_kml")
+                                                         << QStringLiteral("kraorathumbnail")
+                                                         << QStringLiteral("windowsimagethumbnail")
+                                                         << QStringLiteral("marble_thumbnail_osm")
+                                                         << QStringLiteral("gsthumbnail")
+                                                         << QStringLiteral("rawthumbnail")
+                                                         << QStringLiteral("svgthumbnail")
+                                                         << QStringLiteral("textthumbnail")
+                                                         << QStringLiteral("ffmpegthumbs")
                                                          << QStringLiteral("jpegthumbnail"));
 
     connect(m_model, &KFileItemModel::itemsInserted,
diff --git a/src/settings/dolphin_directoryviewpropertysettings.kcfg b/src/settings/dolphin_directoryviewpropertysettings.kcfg
--- a/src/settings/dolphin_directoryviewpropertysettings.kcfg
+++ b/src/settings/dolphin_directoryviewpropertysettings.kcfg
@@ -30,7 +30,7 @@
         <entry name="PreviewsShown" type="Bool" >
             <label context="@label">Previews shown</label>
             <whatsthis context="@info:whatsthis">When this option is enabled, a preview of the file content is shown as an icon.</whatsthis>
-            <default>false</default>
+            <default>true</default>
         </entry>
 
         <entry name="GroupedSorting" type="Bool" >
diff --git a/src/settings/general/previewssettingspage.cpp b/src/settings/general/previewssettingspage.cpp
--- a/src/settings/general/previewssettingspage.cpp
+++ b/src/settings/general/previewssettingspage.cpp
@@ -174,8 +174,27 @@
 {
     KConfigGroup globalConfig(KSharedConfig::openConfig(), "PreviewSettings");
     m_enabledPreviewPlugins = globalConfig.readEntry("Plugins", QStringList()
+                                                     << QStringLiteral("audiothumbnail")
+                                                     << QStringLiteral("comicbookthumbnail")
+                                                     << QStringLiteral("djvuthumbnail")
+                                                     << QStringLiteral("marble_thumbnail_shp")
+                                                     << QStringLiteral("exrthumbnail")
                                                      << QStringLiteral("directorythumbnail")
+                                                     << QStringLiteral("fontthumbnail")
+                                                     << QStringLiteral("marble_thumbnail_gpx")
+                                                     << QStringLiteral("marble_thumbnail_geojson")
+                                                     << QStringLiteral("htmlthumbnail")
                                                      << QStringLiteral("imagethumbnail")
+                                                     << QStringLiteral("jpegthumbnail")
+                                                     << QStringLiteral("marble_thumbnail_kml")
+                                                     << QStringLiteral("kraorathumbnail")
+                                                     << QStringLiteral("windowsimagethumbnail")
+                                                     << QStringLiteral("marble_thumbnail_osm")
+                                                     << QStringLiteral("gsthumbnail")
+                                                     << QStringLiteral("rawthumbnail")
+                                                     << QStringLiteral("svgthumbnail")
+                                                     << QStringLiteral("textthumbnail")
+                                                     << QStringLiteral("ffmpegthumbs")
                                                      << QStringLiteral("jpegthumbnail"));
 
     const qulonglong defaultRemotePreview = static_cast<qulonglong>(MaxRemotePreviewSize) * 1024 * 1024;
diff --git a/src/views/dolphinitemlistview.cpp b/src/views/dolphinitemlistview.cpp
--- a/src/views/dolphinitemlistview.cpp
+++ b/src/views/dolphinitemlistview.cpp
@@ -95,8 +95,27 @@
 
     const KConfigGroup globalConfig(KSharedConfig::openConfig(), "PreviewSettings");
     const QStringList plugins = globalConfig.readEntry("Plugins", QStringList()
+                                                       << QStringLiteral("audiothumbnail")
+                                                       << QStringLiteral("comicbookthumbnail")
+                                                       << QStringLiteral("djvuthumbnail")
+                                                       << QStringLiteral("marble_thumbnail_shp")
+                                                       << QStringLiteral("exrthumbnail")
                                                        << QStringLiteral("directorythumbnail")
+                                                       << QStringLiteral("fontthumbnail")
+                                                       << QStringLiteral("marble_thumbnail_gpx")
+                                                       << QStringLiteral("marble_thumbnail_geojson")
+                                                       << QStringLiteral("htmlthumbnail")
                                                        << QStringLiteral("imagethumbnail")
+                                                       << QStringLiteral("jpegthumbnail")
+                                                       << QStringLiteral("marble_thumbnail_kml")
+                                                       << QStringLiteral("kraorathumbnail")
+                                                       << QStringLiteral("windowsimagethumbnail")
+                                                       << QStringLiteral("marble_thumbnail_osm")
+                                                       << QStringLiteral("gsthumbnail")
+                                                       << QStringLiteral("rawthumbnail")
+                                                       << QStringLiteral("svgthumbnail")
+                                                       << QStringLiteral("textthumbnail")
+                                                       << QStringLiteral("ffmpegthumbs")
                                                        << QStringLiteral("jpegthumbnail"));
     setEnabledPlugins(plugins);