> ## Documentation Index
> Fetch the complete documentation index at: https://bigbluebutton.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Cannot join audio on macOS after allowing browser permissions

> Re-enable microphone access for your browser in macOS System Preferences so you can join audio in a BigBlueButton session.

Anyone joining a BigBlueButton session on macOS needs to grant the browser permission to use the microphone. If you previously denied that permission, macOS blocks audio even after the in-session prompts succeed.

## Grant microphone permission at the system prompt

<img src="https://mintcdn.com/testcompany-0e915c76/UkwRQ6YRiksyhKVr/images/Screen_Shot_2018-10-31_at_4.40.54_PM.png?fit=max&auto=format&n=UkwRQ6YRiksyhKVr&q=85&s=a79488cebad3a41df18161e9733a1534" alt="macOS microphone permission prompt" width="415" height="154" data-path="images/Screen_Shot_2018-10-31_at_4.40.54_PM.png" />

The first time you join a session after a system update, macOS prompts you to allow the browser to access your microphone.

To grant access, select **OK**.

If you selected **Don't Allow**, or you suspect you did, macOS blocks your microphone even after you allow access in the browser. Re-enable it in **System Preferences**.

## Re-enable microphone access for your browser

<img src="https://mintcdn.com/testcompany-0e915c76/UkwRQ6YRiksyhKVr/images/Screen_Shot_2018-10-31_at_4.37.27_PM.png?fit=max&auto=format&n=UkwRQ6YRiksyhKVr&q=85&s=f66f8d85d7bd7db3bfa0781079898245" alt="macOS Apple menu" width="276" height="80" data-path="images/Screen_Shot_2018-10-31_at_4.37.27_PM.png" />

To open system settings, select the Apple menu and choose **System Preferences**.

<img src="https://mintcdn.com/testcompany-0e915c76/UkwRQ6YRiksyhKVr/images/Screen_Shot_2018-10-31_at_4.38.59_PM.png?fit=max&auto=format&n=UkwRQ6YRiksyhKVr&q=85&s=eb392ad36dbe237999507a81481450cd" alt="System Preferences window" width="670" height="691" data-path="images/Screen_Shot_2018-10-31_at_4.38.59_PM.png" />

To open privacy settings, select **Security & Privacy**.

<img src="https://mintcdn.com/testcompany-0e915c76/UkwRQ6YRiksyhKVr/images/Screen_Shot_2018-11-01_at_5.09.35_PM.png?fit=max&auto=format&n=UkwRQ6YRiksyhKVr&q=85&s=621da09a8c36ba85f16e2b225b045294" alt="Microphone privacy settings with privacy, microphone, and application checkbox callouts" width="890" height="768" data-path="images/Screen_Shot_2018-11-01_at_5.09.35_PM.png" />

To find the microphone list, select the **Privacy** **\[1]** tab, then select **Microphone** **\[2]** from the sidebar.

A list of applications that have requested microphone access appears.

To allow your browser to use the microphone, check the box next to the application **\[3]**.

<Note>
  Restart the browser before rejoining the session so the new permission takes effect.
</Note>

You can now share your microphone in BigBlueButton.