diff --git a/frappe/public/js/frappe/file_uploader/FileUploader.vue b/frappe/public/js/frappe/file_uploader/FileUploader.vue
index 2420cc1bf5..50040e0a0e 100644
--- a/frappe/public/js/frappe/file_uploader/FileUploader.vue
+++ b/frappe/public/js/frappe/file_uploader/FileUploader.vue
@@ -284,6 +284,7 @@ const props = defineProps({
 			max_file_size: null, // 2048 -> 2KB
 			max_number_of_files: null,
 			allowed_file_types: [], // ['image/*', 'video/*', '.jpg', '.gif', '.pdf'],
+			blocked_file_types: [], // ['image/heic', 'image/tiff'],
 			crop_image_aspect_ratio: null, // 1, 16 / 9, 4 / 3, NaN (free)
 		}),
 	},
@@ -472,6 +473,7 @@ function check_restrictions(file) {
 
 	let is_correct_type = true;
 	let valid_file_size = true;
+	let is_unsupported_file_type = check_unsupported_file_type(file);
 
 	if (allowed_file_types && allowed_file_types.length) {
 		is_correct_type = allowed_file_types.some((type) => {
@@ -493,12 +495,22 @@ function check_restrictions(file) {
 		valid_file_size = file.size < max_file_size;
 	}
 
-	if (!is_correct_type) {
+	if (!is_correct_type || is_unsupported_file_type) {
 		console.warn("File skipped because of invalid file type", file);
-		frappe.show_alert({
-			message: __('File "{0}" was skipped because of invalid file type', [file.name]),
-			indicator: "orange",
-		});
+		if (is_unsupported_file_type) {
+			frappe.show_alert({
+				message: __('File "{0}" was skipped because of unsupported file type "{1}"', [
+					file.name,
+					file.type,
+				]),
+				indicator: "orange",
+			});
+		} else {
+			frappe.show_alert({
+				message: __('File "{0}" was skipped because of invalid file type', [file.name]),
+				indicator: "orange",
+			});
+		}
 	}
 	if (!valid_file_size) {
 		console.warn("File skipped because of invalid file size", file.size, file);
@@ -511,8 +523,22 @@ function check_restrictions(file) {
 		});
 	}
 
-	return is_correct_type && valid_file_size;
+	return is_correct_type && valid_file_size && !is_unsupported_file_type;
 }
+
+function check_unsupported_file_type(file) {
+	let { blocked_file_types = [] } = props.restrictions;
+	return blocked_file_types.some((type) => {
+		if (type.includes("/")) {
+			if (!file.type) return false;
+			return file.type.match(type);
+		}
+		if (type[0] === ".") {
+			return file.name.toLowerCase().endsWith(type.toLowerCase());
+		}
+	});
+}
+
 function upload_files(dialog) {
 	if (show_file_browser.value) {
 		return upload_via_file_browser();
diff --git a/frappe/public/js/frappe/form/controls/attach.js b/frappe/public/js/frappe/form/controls/attach.js
index b7fb99072e..7855f667bc 100644
--- a/frappe/public/js/frappe/form/controls/attach.js
+++ b/frappe/public/js/frappe/form/controls/attach.js
@@ -65,6 +65,13 @@ frappe.ui.form.ControlAttach = class ControlAttach extends frappe.ui.form.Contro
 	on_attach_doc_image() {
 		this.set_upload_options();
 		this.upload_options.restrictions.allowed_file_types = ["image/*"];
+		// file types like .heic/.tiff are not supported for preview directly in the browser, so we block the user from uploading them
+		this.upload_options.restrictions.blocked_file_types = [
+			"image/heic",
+			"image/heif",
+			"image/tiff",
+			"image/tif",
+		];
 		this.file_uploader = new frappe.ui.FileUploader(this.upload_options);
 	}
 	set_upload_options() {
diff --git a/frappe/public/js/frappe/form/controls/attach_image.js b/frappe/public/js/frappe/form/controls/attach_image.js
index 1fd548f493..91b957afe9 100644
--- a/frappe/public/js/frappe/form/controls/attach_image.js
+++ b/frappe/public/js/frappe/form/controls/attach_image.js
@@ -21,5 +21,12 @@ frappe.ui.form.ControlAttachImage = class ControlAttachImage extends frappe.ui.f
 	set_upload_options() {
 		super.set_upload_options();
 		this.upload_options.restrictions.allowed_file_types = ["image/*"];
+		// file types like .heic/.tiff are not supported for preview directly in the browser, so we block the user from uploading them
+		this.upload_options.restrictions.blocked_file_types = [
+			"image/heic",
+			"image/heif",
+			"image/tiff",
+			"image/tif",
+		];
 	}
 };