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Javascript Injector

Chrome extension by nguyendinhbac35 · Productivity · Developer

A Chrome extension in Productivity · Developer with 8 users, barely installed. Audience over the last 30 days: unchanged.

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
8
Rating
not rated yet
Users, last 30 days
Unchanged
Version
0.0.1
Updated in the store
2026-05-22
Published
2026-05-22
Manifest
V3
Browser access
7 permissions, 2 site patterns

How it has moved

Users
unchanged since 01.10
6-8 · 12 readings
  1. 2026-10-047
  2. 2026-10-086
  3. 2026-10-097
  4. 2026-10-106
  5. 2026-10-186
  6. 2026-10-217
  7. 2026-10-226
  8. 2026-10-237
  9. 2026-10-246
  10. 2026-10-277
  11. 2026-10-298
  12. 2026-10-318
Users
+2 since 31.08
5-9 · 24 readings
  1. 2026-08-316
  2. 2026-09-027
  3. 2026-09-058
  4. 2026-09-089
  5. 2026-09-108
  6. 2026-09-136
  7. 2026-09-175
  8. 2026-09-206
  9. 2026-09-215
  10. 2026-09-256
  11. 2026-09-279
  12. 2026-09-288
  13. 2026-10-047
  14. 2026-10-086
  15. 2026-10-097
  16. 2026-10-106
  17. 2026-10-186
  18. 2026-10-217
  19. 2026-10-226
  20. 2026-10-237
  21. 2026-10-246
  22. 2026-10-277
  23. 2026-10-298
  24. 2026-10-318

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.

  • See the address and title of every tab you have open tabs
  • See which of its blocking rules matched declarativeNetRequestFeedback
  • Block or redirect requests on the sites it can access declarativeNetRequestWithHostAccess
Show the remaining 4
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
  • Open a panel beside the page sidePanel
  • 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

nguyendinhbac35 publishes 3 listings we track, 29 users between them.

  1. Resources Saver nguyendinhbac35 · Productivity · Developer · published 2026-05-15 11 users
  2. Kaen Vocabulary Helper nguyendinhbac35 · Productivity · Education · published 2026-01-24 10 users ★ 4.7

Like this one

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

  1. Inject JavaScript Describes nearly the same job, smaller audience 37 users ★ 3.0
  2. JS Injector Describes nearly the same job, smaller audience 43 users ★ 1.0
  3. Script Injector Describes nearly the same job, smaller audience 2k users ★ 3.5
  4. Custom JavaScript for Websites Describes nearly the same job, smaller audience 1k users ★ 5.0
  5. Scripts Injector Describes nearly the same job, smaller audience 7 users ★ 5.0

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/mpfaelhlmdkhpgciaddgljionjiahcjd/badge.svg)](https://extops.dev/extensions/mpfaelhlmdkhpgciaddgljionjiahcjd)

HTML

<a href="https://extops.dev/extensions/mpfaelhlmdkhpgciaddgljionjiahcjd"><img src="https://extops.dev/extensions/mpfaelhlmdkhpgciaddgljionjiahcjd/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-10-29. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built