***

title: Browser Events
description: Runtime-backed event listeners and event waiting patterns.
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Runtime-backed event listeners and event waiting patterns.

## Support Matrix

| Capability                                         | Playwright | Puppeteer | Stagehand |
| -------------------------------------------------- | ---------- | --------- | --------- |
| [`page.waitForEvent`](./page-wait-for-event)       | Yes        | Yes       | Yes       |
| [`page.on`](./page-on)                             | Yes        | Yes       | Yes       |
| [`page.once`](./page-once)                         | Yes        | Yes       | Yes       |
| [`page.off`](./page-off)                           | Yes        | Yes       | Yes       |
| [`context.on`](./context-on)                       | Yes        |           |           |
| [`context.once`](./context-once)                   | Yes        |           |           |
| [`context.off`](./context-off)                     | Yes        |           |           |
| [`context.waitForEvent`](./context-wait-for-event) | Yes        |           |           |

## Capabilities

* [`page.waitForEvent`](./page-wait-for-event) - Wait for the next matching page event from the runtime event stream.
* [`page.on`](./page-on) - Subscribe to page events through the runtime event bridge.
* [`page.once`](./page-once) - Subscribe to the next matching page event exactly once.
* [`page.off`](./page-off) - Remove a local page event listener.
* [`context.on`](./context-on) - Subscribe to browser-context events through the runtime event bridge.
* [`context.once`](./context-once) - Subscribe to the next matching browser-context event exactly once.
* [`context.off`](./context-off) - Remove a local browser-context event listener.
* [`context.waitForEvent`](./context-wait-for-event) - Wait for the next matching browser-context event.