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FF145 Relnote/Expr: Atomics.waitAsync() #41652

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Oct 27, 2025
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FF145 Relnote/Expr: Atomics.waitAsync() #41652

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FF145 Relnote/Expr: Atomics.waitAsync()
hamishwillee Oct 24, 2025
fe0cb1b
improve relnote
hamishwillee Oct 24, 2025
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15 changes: 1 addition & 14 deletions files/en-us/mozilla/firefox/experimental_features/index.md
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Expand Up @@ -342,20 +342,7 @@ The {{CSSXRef(":heading")}} pseudo-class allows you to style all [heading elemen

## JavaScript

### Atomics.waitAsync()

The {{jsxref("Atomics.waitAsync()")}} static method waits asynchronously on a shared memory location and returns an object representing the result of the operation.
It is non-blocking and usable on the main thread. ([Firefox bug 1467846](https://bugzil.la/1467846)).

| Release channel | Version added | Enabled by default? |
| ----------------- | ------------- | ------------------- |
| Nightly | 140 | No |
| Developer Edition | 140 | No |
| Beta | 140 | No |
| Release | 140 | No |

- `javascript.options.atomics_wait_async`
- : Set to `true` to enable.
**No experimental features in this release cycle.**

## APIs

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6 changes: 4 additions & 2 deletions files/en-us/mozilla/firefox/releases/145/index.md
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Expand Up @@ -44,9 +44,11 @@ Firefox 145 is the current [Beta version of Firefox](https://www.firefox.com/en-

<!-- #### Removals -->

<!-- ### JavaScript -->
### JavaScript

<!-- No notable changes. -->
- Firefox now supports the {{jsxref("Atomics.waitAsync()")}} static method, which allows synchronization of threads based upon the value in a shared memory location.
The method waits asynchronously on the value and returns an object representing the result of the operation. It is non-blocking and usable on the main thread.
([Firefox bug 1884148](https://bugzil.la/1884148)).

<!-- #### Removals -->

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