diff --git a/CHANGELOG.md b/CHANGELOG.md
index ae551af28..26c04cb72 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,7 @@
   - fix `wan-2.2-5b` vae decode  
   - disabling live preview should not disable progress updates  
   - video tab create `params.txt` with metadata  
+  - fix full-screen image-viewer toolbar actions with control tab  
 
 ## Update for 2025-10-18
 
diff --git a/javascript/imageViewer.js b/javascript/imageViewer.js
index e7eaca7a8..8788ca689 100644
--- a/javascript/imageViewer.js
+++ b/javascript/imageViewer.js
@@ -52,12 +52,15 @@ function modalImageSwitch(offset) {
 }
 
 function modalSaveImage(event) {
-  if (gradioApp().getElementById('tab_txt2img').style.display !== 'none') gradioApp().getElementById('save_txt2img').click();
-  else if (gradioApp().getElementById('tab_img2img').style.display !== 'none') gradioApp().getElementById('save_img2img').click();
-  else if (gradioApp().getElementById('tab_process').style.display !== 'none') gradioApp().getElementById('save_extras').click();
+  const tabName = getENActiveTab();
+  const saveBtn = gradioApp().getElementById(`save_${tabName}`);
+  log('modalSaveImage', tabName, saveBtn);
+  if (saveBtn) saveBtn.click();
+  modalImageSwitch(0);
 }
 
 function modalKeyHandler(event) {
+  log('modalKeyHandler', event.key);
   switch (event.key) {
     case 's':
       modalSaveImage();
@@ -158,6 +161,7 @@ function modalZoomToggle(event) {
   const modalImage = gradioApp().getElementById('modalImage');
   modalZoomSet(modalImage, !modalImage.classList.contains('modalImageFullscreen'));
   event.stopPropagation();
+  modalImageSwitch(0);
 }
 
 function modalTileToggle(event) {
@@ -172,12 +176,15 @@ function modalTileToggle(event) {
     modal.style.setProperty('background-image', `url(${modalImage.src})`);
   }
   event.stopPropagation();
+  modalImageSwitch(0);
 }
 
 function modalResetInstance(event) {
   const modalImage = document.getElementById('modalImage');
   previewInstance.dispose();
   previewInstance = panzoom(modalImage, { zoomSpeed: 0.05, minZoom: 0.1, maxZoom: 5.0, filterKey: (/* e, dx, dy, dz */) => true });
+  event.stopPropagation();
+  modalImageSwitch(0);
 }
 
 function modalToggleParams(event) {
@@ -188,6 +195,7 @@ function modalToggleParams(event) {
     modalExif.style.display = 'none';
   }
   event.stopPropagation();
+  modalImageSwitch(0);
 }
 
 function galleryClickEventHandler(event) {
diff --git a/modules/shared.py b/modules/shared.py
index 8a5b7510a..b9f290df7 100644
--- a/modules/shared.py
+++ b/modules/shared.py
@@ -259,7 +259,7 @@ options_templates.update(options_section(('vae_encoder', "Variational Auto Encod
     "sd_vae": OptionInfo("Automatic", "VAE model", gr.Dropdown, lambda: {"choices": shared_items.sd_vae_items()}, refresh=shared_items.refresh_vae_list),
     "diffusers_vae_upcast": OptionInfo("default", "VAE upcasting", gr.Radio, {"choices": ['default', 'true', 'false']}),
     "no_half_vae": OptionInfo(False if not cmd_opts.use_openvino else True, "Full precision (--no-half-vae)"),
-    "diffusers_vae_slicing": OptionInfo(cmd_opts.lowvram or cmd_opts.medvram, "VAE slicing", gr.Checkbox),
+    "diffusers_vae_slicing": OptionInfo(True, "VAE slicing", gr.Checkbox),
     "diffusers_vae_tiling": OptionInfo(cmd_opts.lowvram, "VAE tiling", gr.Checkbox),
     "diffusers_vae_tile_size": OptionInfo(0, "VAE tile size", gr.Slider, {"minimum": 0, "maximum": 4096, "step": 8 }),
     "diffusers_vae_tile_overlap": OptionInfo(0.25, "VAE tile overlap", gr.Slider, {"minimum": 0, "maximum": 0.95, "step": 0.05 }),