Stephen Harrison 🗓️ Updated ⏱️ — 📝 —


Camera Microphone Blocked by Extension (Chrome & Edge)

If your webcam or microphone suddenly stops working in Chrome or Edge, and you see a message like “camera microphone blocked by extension”, this guide walks you through a simple fix.

You’ll test in Incognito/InPrivate to confirm it’s an add-on, identify the exact extension causing the block, then whitelist or disable it safely.

At the end, you can use the eComputerZ Camera Microphone Blocked by Extension Test to confirm everything works again — no downloads, and nothing is uploaded.


🔒 Runs locally in your browser ⚡ No downloads

Camera Microphone Blocked by Extension

Use this quick check before a video call: preview your camera, see live mic levels, and confirm your speakers are playing sound. If your browser blocks access, the permission helper shows exactly what to do next (including “blocked by an extension” fixes).

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1) Run the checks

Follow the steps in order. You can run each test separately, or use “Start quick test”.

Camera
Not started
IDLE
Microphone
Not started
IDLE
Speakers
Not started
IDLE

Camera preview

Tip: if labels look blank, click “Start camera” once to allow permission, then refresh devices.

Microphone level meter

Speak normally. If the meter barely moves, check mute switches, input selection, and OS mic privacy settings.
Live level RMS: — | Peak: —
WAITING

Speaker / headphones test

Some browsers only allow “Default output”. If you don’t see options, that’s normal.
70%
What you should hear: a steady beep tone. If you can’t hear it, check your device volume, output device, and mute/quiet mode. Try headphones to rule out speaker hardware.
Summary
A quick “ready for a call?” check, plus technical details if you need support.
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Technical details (for support) 
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FAQ

Short answers to the most common “why isn’t it working?” problems.

Does this tool record or upload my audio/video?

No. It only shows a local camera preview and microphone level meter in your browser. Nothing is uploaded.

Why are my device names blank?

Many browsers hide device labels until you grant permission at least once. Click “Start camera” or “Start mic”, allow access, then refresh devices.

Why does it say the device is “busy”?

Another app or tab is already using the camera or microphone (Teams, Zoom, Meet, etc.). Close them fully and try again.

Why can’t I choose a speaker/output device?

Some browsers don’t support output selection, or they restrict it for privacy reasons. Use your system output settings, or try Chrome/Edge on desktop.

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