diff --git a/thumb_config.go b/thumb_config.go
new file mode 100644
index 0000000..76eaa6b
--- /dev/null
+++ b/thumb_config.go
@@ -0,0 +1,96 @@
+package main
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+
+	"git.leaktechnologies.dev/stu/VideoTools/internal/logging"
+)
+
+type thumbConfig struct {
+	ContactSheet   bool `json:"contactSheet"`
+	ShowTimestamps bool `json:"showTimestamps"`
+	Count          int  `json:"count"`
+	Width          int  `json:"width"`
+	SheetWidth     int  `json:"sheetWidth"`
+	Columns        int  `json:"columns"`
+	Rows           int  `json:"rows"`
+}
+
+func defaultThumbConfig() thumbConfig {
+	return thumbConfig{
+		ContactSheet:   false,
+		ShowTimestamps: false,
+		Count:          24,
+		Width:          320,
+		SheetWidth:     360,
+		Columns:        4,
+		Rows:           8,
+	}
+}
+
+func loadPersistedThumbConfig() (thumbConfig, error) {
+	var cfg thumbConfig
+	path := moduleConfigPath("thumb")
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return cfg, err
+	}
+	if err := json.Unmarshal(data, &cfg); err != nil {
+		return cfg, err
+	}
+	if cfg.Count == 0 {
+		cfg.Count = 24
+	}
+	if cfg.Width == 0 {
+		cfg.Width = 320
+	}
+	if cfg.SheetWidth == 0 {
+		cfg.SheetWidth = 360
+	}
+	if cfg.Columns == 0 {
+		cfg.Columns = 4
+	}
+	if cfg.Rows == 0 {
+		cfg.Rows = 8
+	}
+	return cfg, nil
+}
+
+func savePersistedThumbConfig(cfg thumbConfig) error {
+	path := moduleConfigPath("thumb")
+	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
+		return err
+	}
+	data, err := json.MarshalIndent(cfg, "", "  ")
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(path, data, 0o644)
+}
+
+func (s *appState) applyThumbConfig(cfg thumbConfig) {
+	s.thumbContactSheet = cfg.ContactSheet
+	s.thumbShowTimestamps = cfg.ShowTimestamps
+	s.thumbCount = cfg.Count
+	s.thumbWidth = cfg.Width
+	s.thumbSheetWidth = cfg.SheetWidth
+	s.thumbColumns = cfg.Columns
+	s.thumbRows = cfg.Rows
+}
+
+func (s *appState) persistThumbConfig() {
+	cfg := thumbConfig{
+		ContactSheet:   s.thumbContactSheet,
+		ShowTimestamps: s.thumbShowTimestamps,
+		Count:          s.thumbCount,
+		Width:          s.thumbWidth,
+		SheetWidth:     s.thumbSheetWidth,
+		Columns:        s.thumbColumns,
+		Rows:           s.thumbRows,
+	}
+	if err := savePersistedThumbConfig(cfg); err != nil {
+		logging.Debug(logging.CatSystem, "failed to persist thumb config: %v", err)
+	}
+}
diff --git a/thumb_module.go b/thumb_module.go
index 6d79d56..d39b0fe 100644
--- a/thumb_module.go
+++ b/thumb_module.go
@@ -24,6 +24,9 @@ func (s *appState) showThumbView() {
 	s.stopPreview()
 	s.lastModule = s.active
 	s.active = "thumb"
+	if cfg, err := loadPersistedThumbConfig(); err == nil {
+		s.applyThumbConfig(cfg)
+	}
 	s.setContent(buildThumbView(s))
 }
 
@@ -81,7 +84,7 @@ func buildThumbView(state *appState) fyne.CanvasObject {
 		state.thumbColumns = 4 // 4 columns works well for widescreen videos
 	}
 	if state.thumbRows == 0 {
-		state.thumbRows = 6 // 4x6 = 24 thumbnails
+		state.thumbRows = 8 // 4x8 = 32 thumbnails
 	}
 
 	// File label and video preview
@@ -129,6 +132,7 @@ func buildThumbView(state *appState) fyne.CanvasObject {
 	// Contact sheet checkbox (wrapped)
 	contactSheetCheck := widget.NewCheck("", func(checked bool) {
 		state.thumbContactSheet = checked
+		state.persistThumbConfig()
 		state.showThumbView()
 	})
 	contactSheetCheck.Checked = state.thumbContactSheet
@@ -141,6 +145,7 @@ func buildThumbView(state *appState) fyne.CanvasObject {
 
 	timestampCheck := widget.NewCheck("", func(checked bool) {
 		state.thumbShowTimestamps = checked
+		state.persistThumbConfig()
 	})
 	timestampCheck.Checked = state.thumbShowTimestamps
 	timestampLabel := widget.NewLabel("Show timestamps on thumbnails")
@@ -169,6 +174,7 @@ func buildThumbView(state *appState) fyne.CanvasObject {
 			state.thumbColumns = int(val)
 			colLabel.SetText(fmt.Sprintf("Columns: %d", int(val)))
 			totalLabel.SetText(fmt.Sprintf("Total thumbnails: %d", state.thumbColumns*state.thumbRows))
+			state.persistThumbConfig()
 		}
 
 		rowSlider := widget.NewSlider(2, 12)
@@ -178,6 +184,7 @@ func buildThumbView(state *appState) fyne.CanvasObject {
 			state.thumbRows = int(val)
 			rowLabel.SetText(fmt.Sprintf("Rows: %d", int(val)))
 			totalLabel.SetText(fmt.Sprintf("Total thumbnails: %d", state.thumbColumns*state.thumbRows))
+			state.persistThumbConfig()
 		}
 
 		sizeOptions := []string{"240 px", "300 px", "360 px", "420 px", "480 px"}
@@ -194,6 +201,7 @@ func buildThumbView(state *appState) fyne.CanvasObject {
 			case "480 px":
 				state.thumbSheetWidth = 480
 			}
+			state.persistThumbConfig()
 		})
 		switch state.thumbSheetWidth {
 		case 240:
@@ -228,6 +236,7 @@ func buildThumbView(state *appState) fyne.CanvasObject {
 		countSlider.OnChanged = func(val float64) {
 			state.thumbCount = int(val)
 			countLabel.SetText(fmt.Sprintf("Thumbnail Count: %d", int(val)))
+			state.persistThumbConfig()
 		}
 
 		widthLabel := widget.NewLabel(fmt.Sprintf("Thumbnail Width: %d px", state.thumbWidth))
@@ -237,6 +246,7 @@ func buildThumbView(state *appState) fyne.CanvasObject {
 		widthSlider.OnChanged = func(val float64) {
 			state.thumbWidth = int(val)
 			widthLabel.SetText(fmt.Sprintf("Thumbnail Width: %d px", int(val)))
+			state.persistThumbConfig()
 		}
 
 		settingsOptions = container.NewVBox(