FileSystemObserver: disconnect() method

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.

The disconnect() method of the FileSystemObserver interface stops the observer observing the file system.

Syntax

disconnect()

Parameters

None.

Return value

None (undefined).

Examples

Stop observing the file system

Assuming a FileSystemObserver instance is available, you can call the disconnect() method on it when you want to stop observing changes to the file system entry:

observer.disconnect();

Specifications

Not currently part of a specification. See https://github.com/whatwg/fs/pull/165 for the relevant specification PR.

Browser compatibility

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`disconnect` Experimental Non-standard	Chrome – Full support Chrome 133 (Release date: 2025-02-04) footnote Full support	Edge – Full support Edge 133 (Release date: 2025-02-06) footnote Full support	Firefox – No support Firefox footnote No support	Opera – Full support Opera 118 (Release date: 2025-04-15) footnote Full support	Safari – No support Safari footnote No support	Chrome Android – No support Chrome Android footnote No support	Firefox for Android – No support Firefox for Android footnote No support	Opera Android – No support Opera Android footnote No support	Safari on iOS – No support Safari on iOS footnote No support	Samsung Internet – No support Samsung Internet footnote No support	WebView Android – No support WebView Android footnote No support	WebView on iOS – No support WebView on iOS footnote No support

Tip: you can click/tap on a cell for more information.

Full support: Full support
No support: No support
: Experimental. Expect behavior to change in the future.
: Non-standard. Check cross-browser support before using.

FileSystemObserver: disconnect() method

Legend