How to fix a microphone blocked in your browser
There is no error message when a browser blocks your microphone — the site simply receives silence. Here is how to spot it, clear it, and stop it happening again.
Last reviewed on August 26, 2026
There is no error message when a browser blocks your microphone — the site simply receives silence. Here is how to spot it, clear it, and stop it happening again.
Last reviewed on August 26, 2026
A blocked microphone permission is the most common reason a website cannot hear you, and it is also the most confusing, because browsers block silently. There is no error, no dialog — the site simply receives an empty audio stream. This guide shows how to fix it: how to spot a block, how to clear it in every major browser, and why the prompt sometimes never appears at all.
Fastest check: look at the address bar. A crossed-out microphone icon means the site is blocked. Click it, choose to allow, then reload the page — the change does not take effect until you do.
The steps differ slightly per browser, but the shape of the fix is identical everywhere. If you only have a minute, do this:
Browser-specific steps, including the exact settings paths and the mobile equivalents, follow below.
| Signal | Points to |
|---|---|
| Crossed-out microphone icon in the address bar | Permission block, definitively |
| No permission prompt ever appears | A remembered "Block" decision, or an insecure page |
| Works on one site, not another | Per-site permission |
| Works in one browser, not another | Browser-level or OS-level per-app permission |
| Fails in every browser and every app | Operating system or hardware — see microphone not detected |
| Prompt appears but the device list is empty | OS-level block or no device present |
Confirm with the microphone test: it reports the specific browser error, which distinguishes a denied permission from a missing device.
Chrome and Edge share the same engine, so the steps are identical apart from the settings URL.
chrome://settings/content/microphone — in Edge, edge://settings/content/microphone.That last point deserves emphasis: Chrome can be pointed at a disconnected headset while Windows or macOS uses the built-in microphone, producing silence that looks like a hardware fault.
For a permanent block: open about:preferences#privacy, scroll to Permissions, click Settings… next to Microphone, remove the site, and save.
Firefox-specific traps worth knowing:
Safari also requires the macOS-level permission underneath it: System Settings › Privacy & Security › Microphone must have Safari enabled. Both layers must agree. See microphone not working on Mac for the OS side.
The most common iOS failure is not a setting at all: in-app browsers inside social apps frequently block microphone access outright. If a link opened from a messaging or social app never shows a prompt, open the same URL in Safari directly.
Both the Android app permission and the per-site permission must be granted; either one alone is not enough.
AudioCaptureAllowed set to false, which removes the prompt entirely. Check chrome://policy.Granting a site permission achieves nothing if the operating system is blocking the browser itself. Both layers must be open:
After changing anything, reload the page — permissions are read when the page loads, so an existing tab keeps the old state. Then run the microphone test and watch the level meter move as you speak. If the browser now has access but the signal is still flat, permission was not your problem: continue with the general troubleshooting guide.
Click the icon at the left of the address bar, open Site settings, set Microphone to Allow, then reload the page. Globally, visit chrome://settings/content/microphone and remove the site from the blocked list.
Either an earlier Block decision was remembered, the page is not served over HTTPS, the request came from a cross-origin iframe, or an enterprise policy or extension is suppressing it.
Click the icon left of the address bar and click the × beside 'Microphone Blocked Temporarily'. For a permanent block, open about:preferences#privacy, click Settings next to Microphone, and remove the site.
Yes. Permissions are read when the page loads, so an already-open tab keeps the old state until you reload.
Each browser stores its own per-site permission, and each also needs its own operating-system permission. On Windows the relevant switch is 'Let desktop apps access your microphone'.
In-app browsers inside social media apps frequently block microphone access entirely. Open the same page in Safari directly.