diff --git a/README.md b/README.md
index b263ea1..5c56039 100644
--- a/README.md
+++ b/README.md
@@ -52,8 +52,6 @@ See `test/fixture.html` for the full list of features exercised — and the inli
 
 After installing the plugin, you can open `.html` files in Obsidian tabs (like a doc), embedded files, and canvas cards.
 
-Obsidian shows `.md` files in the file explorer by default. To see `.html` files too, enable **Settings → Files & links → Show all file types**.
-
 Link to HTML docs with the explicit `.html` extension:
 
 ```markdown
diff --git a/docs/ISSUE-source-mode.md b/docs/ISSUE-source-mode.md
index e720b78..da6d72a 100644
--- a/docs/ISSUE-source-mode.md
+++ b/docs/ISSUE-source-mode.md
@@ -27,7 +27,7 @@ This is a **surgical addition**, not a redesign.
 - [ ] Theme refresh (dark/light toggle, `css-change`) does not clobber the source editor. Simplest acceptable implementation: skip the preview re-render while source mode is active.
 - [ ] Existing iframe sandbox model is unchanged: Blob URL, `sandbox="allow-scripts allow-popups allow-forms"`, no `allow-same-origin`, sandbox attribute set before `src`. See `main.ts:142-154` and the explanatory comment.
 - [ ] `HtmlEmbed` (HTML embeds in markdown/canvas) stays read-only — no toggle, no editor.
-- [ ] All existing behavior preserved: cross-file link navigation, doctype preservation, theme variable injection, "Show all file types" notice.
+- [ ] All existing behavior preserved: cross-file link navigation, doctype preservation, theme variable injection.
 
 ## Approach
 
diff --git a/main.ts b/main.ts
index 6784e9c..d80099f 100644
--- a/main.ts
+++ b/main.ts
@@ -2,7 +2,6 @@ import {
 	Component,
 	FileView,
 	getLinkpath,
-	Notice,
 	type OpenViewState,
 	type PaneType,
 	Plugin,
@@ -272,18 +271,6 @@ export default class HtmlDocsPlugin extends Plugin {
 			embedRegistry.unregisterExtension("html");
 			embedRegistry.unregisterExtension("htm");
 		});
-
-		// Obsidian hides files with unrecognized extensions in the file
-		// explorer unless "Show all file types" is on; registering the
-		// extension only routes the view, it doesn't add to that filter.
-		const vault = this.app.vault as { getConfig?: (key: string) => unknown };
-		const showUnsupported = vault.getConfig?.("showUnsupportedFiles");
-		if (showUnsupported === false) {
-			new Notice(
-				"To see .html files in your file explorer, please enable 'Show all file types' in Settings → Files & Links.",
-				10000,
-			);
-		}
 	}
 
 	trackHtmlEmbed(embed: HtmlEmbed): void {