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User Agent and JS Manager

Chrome extension by Alex Shand · Productivity · Developer

A Chrome extension in Productivity · Developer with 35 users, barely installed. Audience over the last 30 days: -2.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 3 screenshots

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

Users
35
Rating
not rated yet
Users, last 30 days
-2
Version
1.0.3
Updated in the store
2025-12-03
Published
2025-12-02
Manifest
V3
Browser access
4 permissions, 1 site pattern

How it has moved

Users
-2 since 02.10
29-37 · 14 readings
  1. 2026-10-0429
  2. 2026-10-0931
  3. 2026-10-1030
  4. 2026-10-1132
  5. 2026-10-1330
  6. 2026-10-1636
  7. 2026-10-1837
  8. 2026-10-1935
  9. 2026-10-2236
  10. 2026-10-2436
  11. 2026-10-2537
  12. 2026-10-2833
  13. 2026-10-2934
  14. 2026-11-0135
Users
+10 since 01.09
24-39 · 26 readings
  1. 2026-09-0125
  2. 2026-09-0224
  3. 2026-09-0426
  4. 2026-09-0530
  5. 2026-09-0729
  6. 2026-09-0831
  7. 2026-09-0935
  8. 2026-09-2037
  9. 2026-09-2136
  10. 2026-09-2537
  11. 2026-09-2739
  12. 2026-09-2837
  13. 2026-10-0429
  14. 2026-10-0931
  15. 2026-10-1030
  16. 2026-10-1132
  17. 2026-10-1330
  18. 2026-10-1636
  19. 2026-10-1837
  20. 2026-10-1935
  21. 2026-10-2236
  22. 2026-10-2436
  23. 2026-10-2537
  24. 2026-10-2833
  25. 2026-10-2934
  26. 2026-11-0135

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Every site you visit. This extension can read and change the content of any page you open.

Show the remaining 1
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

Alex Shand.

Like this one

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

  1. Custom User-Agent Switcher Describes nearly the same job, smaller audience 93 users
  2. WebDev Mate Describes nearly the same job, with an established audience 30k users
  3. Responsive Tester Describes nearly the same job, with an established audience 40k users ★ 3.0
  4. Midi crawler Describes nearly the same job, smaller audience 79 users ★ 5.0
  5. UA Switcher Describes nearly the same job, smaller audience 94 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.

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Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/jpfikdpcedjmdadbiihkneebogfdadgb/badge.svg)](https://extops.dev/extensions/jpfikdpcedjmdadbiihkneebogfdadgb)

HTML

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built