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Mobile Desktop Profile Switcher

Chrome extension by knocker · Productivity · Tools

A Chrome extension in Productivity · Tools with 7 users, barely installed.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 2 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
7
Rating
not rated yet
Users, last 8 days
+7
Version
1.0.2
Updated in the store
2026-09-10
Published
2026-09-09
Manifest
V3
Browser access
3 permissions

How it has moved

Users
+7 since 10.09
0-7 · 4 readings
2026-09-10: appeared in the store2026-09-10: released 1.0.2
  1. 2026-09-100appeared in the storereleased 1.0.2
  2. 2026-09-134
  3. 2026-09-157
  4. 2026-09-177
Users
+7 since 10.09
0-7 · 4 readings
2026-09-10: appeared in the store2026-09-10: released 1.0.2
  1. 2026-09-100appeared in the storereleased 1.0.2
  2. 2026-09-134
  3. 2026-09-157
  4. 2026-09-177

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

  • Block or redirect requests on the sites it can access declarativeNetRequestWithHostAccess
  • Act on the current tab, but only after you click it activeTab
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 1.0.2

What changed recently

  1. Package size changed
  2. Released version 1.0.2 (was 1.0.0)
  3. Appeared in the store

The publisher

knocker publishes 2 listings we track, 12 users between them.

  1. Mobile Viewport Switcher knocker · Productivity · Tools · published 2026-09-01 5 users (last published figure)

Like this one

Listings the catalog judges closest in what they say they do.

  1. Mobile View Switcher Describes nearly the same job, smaller audience 2k users ★ 4.5
  2. Mobile View Switcher Describes nearly the same job, with a large installed audience 100k users ★ 3.4
  3. AgentSwitch Describes nearly the same job, smaller audience 3 users
  4. UserAgent Shifter Describes nearly the same job, smaller audience 23 users
  5. Agent Switch — User Agent Switcher Describes nearly the same job, smaller audience 45 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Is this your extension?

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See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.