Skip to content
Back to the index

Mobile Device Previewer

mozilla.orgBrowser DevTools & extensions

PulseGate's liveness check found it on 17 Sep 2026; it is registered on Firefox Add-ons and has been in the index since 17 Sep 2026. How this is checked

Mobile Device Previewer is a Firefox extension that previews website designs as they would appear on different mobile devices and screen sizes. It helps developers and designers assess responsive layouts, visual consistency, and usability during design validation.

Inferred · not functionally tested

FreeWebEmbeddableAndroid
Mobile Device Previewer preview
Visit mozilla.org
1alternative
5features
2024since

Overview

5 features

Purpose: Validating website layouts across mobile screen sizes without manually testing on multiple devices.

Inferred · not functionally tested

Audience: web developers and designers

Inferred · not functionally tested

Functions: Unknown

Interfaces: API: unknown · MCP: unknown · CLI: unknown · Self-hosting: unknown

Recorded constraints: pricing: free · license: Proprietary · platforms: WEB · deployment: browser, embeddable, android

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: addons.mozilla.org · addons.mozilla.org. These links do not verify the individual claims.

Mobile Device Previewer is a Browser DevTools & extensions project. Inferred · not functionally tested: It focuses on validating website layouts across mobile screen sizes without manually testing on multiple devices. Inferred · not functionally tested: It is built as a consumer product for web developers and designers. Basis unknown · not verified: Mobile Device Previewer is free to use. Basis unknown · not verified: It runs on the web, embeddable surfaces, and Android.

Trang Liên Minh OKVIP builds and maintains Mobile Device Previewer, and it first shipped in 2024. Inferred · not functionally tested: Key capabilities include mobile previews, responsive testing, and device layouts. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • Mobile previews
  • Responsive testing
  • Device layouts
  • Screen-size validation
  • Firefox integration

Topics: Inferred · not functionally tested

Tags
mobile-previewresponsive-designfirefox-extensionweb-layout-testing

JSON profile · Text profile · Access guide

Built with & integrations

Runs on
BrowserEmbeddableAndroid

Trust & compliance

Public signals
HTTPSPrivacy PolicyTerms of ServiceFree tierMulti-languageStore listing found
Legal
Privacy Policy Terms of Service

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed17 Sep · 05:48 UTC
    Mobile Device Previewer seen via Firefox Add-ons
    Source: Firefox Add-ons · Open

Frequently asked questions about Mobile Device Previewer

What is Mobile Device Previewer?
Inferred · not functionally tested: Mobile Device Previewer focuses on validating website layouts across mobile screen sizes without manually testing on multiple devices. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Mobile Device Previewer?
Inferred · not functionally tested: Mobile Device Previewer is a consumer product built for web developers and designers.
Is Mobile Device Previewer free?
Basis unknown · not verified: Yes — Mobile Device Previewer is free to use.
What platforms does Mobile Device Previewer run on?
Basis unknown · not verified: Mobile Device Previewer runs on the web, embeddable surfaces, and Android.
Is Mobile Device Previewer still active?
PulseGate's liveness check found it on 17 Sep 2026.
What projects are similar to Mobile Device Previewer?
Similar projects tracked by PulseGate include Mobile Device Simulator, Mobile View Simulator, and Mobile Device Simulator Pro.Mobile Device SimulatorMobile View SimulatorMobile Device Simulator Pro
Who develops Mobile Device Previewer?
Mobile Device Previewer is developed by Trang Liên Minh OKVIP.
When did Mobile Device Previewer launch?
Mobile Device Previewer first shipped in 2024.

Similar projects

Closest matches by what these projects do