How to Allow Microphone Access in Firefox

Quick answer

In Firefox, microphone access is controlled per site through a permission prompt. When a site first asks to use your microphone, choose Allow. You can later change this by selecting the site's permission from the address bar or Firefox settings and setting microphone access to Allow.

How to allow microphone access when prompted

The first time a site requests your microphone, Firefox shows a prompt in the upper-left part of the page. The prompt includes the site name, the microphone input Firefox plans to use, and the options Allow, Block, and sometimes a temporary option.

• Choose the microphone you want to use if more than one is available.
• Select Allow to let the site use the microphone.
• Confirm that the site is now receiving audio, for example by watching its volume meter or using its intended feature.

How to allow microphone access from the address bar

If you previously blocked a site or need to change its permission, you can update it from the current page.

• Open the site where the microphone should be allowed.
• Select the permission or site information icon in the address bar.
• Find the microphone permission entry.
• Change it to Allow, or remove the blocked status and reload the page if Firefox prompts again.
• Reload the page if Firefox asks you to do so, then complete the site's normal microphone request.

How to allow microphone access from Firefox settings

Firefox settings also let you review and edit microphone permissions for sites you have visited.

• Open Firefox settings.
• Select Privacy & Security.
• Find the Permissions section and select Settings next to Microphone.
• Locate the site in the list or use its search field.
• Set the site's microphone permission to Allow.
• Save the change and reopen the site.

Check that Firefox is using the correct microphone

Microphone access is separate from active input selection. A site may have permission to use audio while Firefox is still set to the wrong input device.

• Open the Firefox permission prompt or site settings for the current page.
• Select the intended microphone from the available input list.
• Reload the site if necessary so it applies the new input.
• Use the site's audio indicator or volume meter to confirm that the correct microphone is active.

Permitting microphone capture does not switch the active input. If another device is selected, you must choose the intended microphone in the same prompt or permission controls.

What to do if the prompt does not appear

If Firefox does not ask for microphone permission, the site may not be requesting it yet, or microphone permission may already be saved as blocked. Check the address bar for a blocked permission entry, then set it to Allow and reload the page. If a system-level microphone block or missing device is involved, the supplied coverage does not include that diagnostic information.