Bezel — Responsive Tester & Device Emulator

Name: Bezel — Responsive Tester & Device Emulator
Author: Alexander Hagenah

Test responsive design on 90+ real device frames — phones, tablets, foldables, even watches. Accurate emulation with real touch, pixel density and client hints, so pages behave exactly as on the device. Runs locally: no ads, no account, private.

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-07-27

Version:

0.3.1

Last updated: 2026-07-26

Features & Capabilities

Bezel puts your site inside a real device — and the page believes it.

Not a resized window. A photorealistic device frame with a true emulation layer, so the page reports real touch events, the correct pixel density (DPR), and honest client hints. What you see is what ships.

Free, forever

90+ real devices — phones, tablets, foldables, even watches
Accurate emulation: touch input, pixel density, user-agent, client hints
Frame localhost, staging, and logged-in pages — nothing to deploy
Inspect & measure — element size, spacing, fonts, colour contrast
Eyedropper — sample any pixel on the page
Viewport and full-page screenshots
No ads. No account. Nothing you do leaves your machine.

Bezel Pro

Compare — several devices side by side, live and in sync
Environment spoofing — geolocation, timezone, language, network, dark mode
Custom request headers — auth tokens, feature flags, staging gates
Custom screen sizes — add any device you need
Presentation mode — hand a clean, framed demo to a client
Unlimited framed and composite exports

How it works

Click Bezel on any tab.
Pick a device.
The page reflows exactly as it would on the real thing.

Private by design

Bezel runs locally. The pages you open, your screenshots, your settings — none of it is uploaded, ever. The only time Bezel contacts a server is to verify a Pro licence, and that request carries nothing about you or your browsing. Full policy: https://bezel.tools/privacy

Device names shown in Bezel are trademarks of their respective owners. Bezel is an independent tool and is not affiliated with or endorsed by them.

User Growth & Download Statistics

Add-on

By:

Alexander Hagenah

Daily users:

Version:

0.3.1 Last updated: 2026-07-26

Version code:

6376706

Creation date:

2026-07-13

Risk:

Permissions:

Host permissions:

<all_urls>

Content scripts matches:

<all_urls>

Size:

352.63KB

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-27

Compare stats and ranking:

Ranking

# 135,248 ▼ 39,212

Other rankings

#63 in eyedropper keyword 45 ▼ 4#125 in device keyword 15 ▼ 75#155 in response keyword 10 ▼ 65

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Alexander Hagenah

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/bezel-responsive-emulator/

Website:

https://bezel.tools/

Permission Change History

2026-07-27: Version 0.2.0 → 0.3.1

Remove Permissions: browsingData

2026-07-24: Version 0.1.0 → 0.2.0

Add Permissions: unlimitedStorage

Is Bezel — Responsive Tester & Device Emulator Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Bezel — Responsive Tester & Device Emulator requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Bezel — Responsive Tester & Device Emulator is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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