# Browser permission requirements for extension to detect Httpwatch for Windows

**URL:** <https://forum.httpwatch.com/t/browser-permission-requirements-for-extension-to-detect-httpwatch-for-windows/53>\
**Category:** Question\
**Created:** [August 24, 2026, 5:43am UTC](https://forum.httpwatch.com/t/browser-permission-requirements-for-extension-to-detect-httpwatch-for-windows/53 "2026-08-24T05:43:59Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![enquirer](https://forum.httpwatch.com/letter_avatar_proxy/v4/letter/e/7ba0ec/32.png) [@enquirer](https://forum.httpwatch.com/u/enquirer)\
**Post date:** [August 24, 2026, 5:43am UTC](https://forum.httpwatch.com/t/browser-permission-requirements-for-extension-to-detect-httpwatch-for-windows/53/1 "2026-08-24T05:43:59Z")

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![image](https://forum.httpwatch.com/uploads/default/original/1X/4d0f900f2a2fafa7abbfada5b1302a3ed2407396.png)

Hello, I am getting this error from the extension even after installing the desktop software. What other browser permissions are required besides native messaging?

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**Author:** ![HttpWatch](https://forum.httpwatch.com/user_avatar/forum.httpwatch.com/httpwatch/32/9_2.png) [@HttpWatch](https://forum.httpwatch.com/u/HttpWatch)\
**Post date:** [August 24, 2026, 6:55am UTC](https://forum.httpwatch.com/t/browser-permission-requirements-for-extension-to-detect-httpwatch-for-windows/53/2 "2026-08-24T06:55:28Z")

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Hi,

There are no additional browser permissions that normally need to be granted. This message means the extension could not connect to the HttpWatch native-messaging host installed with the Windows application.

On a managed PC, the following Chrome policies could cause this:

- `NativeMessagingBlocklist`

- `NativeMessagingAllowlist`

- `NativeMessagingUserLevelHosts`

The HttpWatch Chrome host is:

```auto
com.httpwatch.chrome.extension

```

If all native-messaging hosts are blocked using `*`, this host must be added to the allowlist. Also, if `NativeMessagingUserLevelHosts` is disabled, Chrome will not detect a per-user HttpWatch installation. In that case, your administrator must enable that policy or install HttpWatch for all users.

Please open `chrome://policy`, search for “NativeMessaging,” and let us know which policies are displayed. If none are configured, repairing or reinstalling the latest HttpWatch Windows software under the same Windows account may restore the native-host registration.

Regards,  
Neumetrix Support

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<div class="post-metadata">

**Author:** ![HttpWatch](https://forum.httpwatch.com/user_avatar/forum.httpwatch.com/httpwatch/32/9_2.png) [@HttpWatch](https://forum.httpwatch.com/u/HttpWatch)\
**Post date:** [August 26, 2026, 11:52am UTC](https://forum.httpwatch.com/t/browser-permission-requirements-for-extension-to-detect-httpwatch-for-windows/53/3 "2026-08-26T11:52:41Z")

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The error shown above should only occur if HttpWatch failed to install correctly or the Chrome policy `NativeMessagingUserLevelHosts` was set to `FALSE` .

There is more information about this policy and how to use HttpWatch with it at:

[FAQ | HttpWatch](https://www.httpwatch.com/faq/#nativemessagingrights)

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**Author:** ![HttpWatch](https://forum.httpwatch.com/user_avatar/forum.httpwatch.com/httpwatch/32/9_2.png) [@HttpWatch](https://forum.httpwatch.com/u/HttpWatch)\
**Post date:** [August 27, 2026, 11:23am UTC](https://forum.httpwatch.com/t/browser-permission-requirements-for-extension-to-detect-httpwatch-for-windows/53/4 "2026-08-27T11:23:30Z")

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The Chrome and Edge extensions now link to an explanation of **NativeMessagingUserLevelHosts** instead of just showing that HttpWatch was not installed:

 ![httpwatchnotfound](https://forum.httpwatch.com/uploads/default/original/1X/1b03ff6f72684c83fe36335dbaebd36917ea50cf.png)