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Frank - Header Injector

Chrome extension by Graycode Systems · Productivity · Developer

A Chrome extension in Productivity · Developer with 74 users, barely installed.

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
74
Rating
5.0 (1 ratings)
Users, last 17 days
-19
Rating, last 30 days
Not watched long enough to say
Version
1.1.1
Updated in the store
2026-03-27
Published
2025-04-21
Manifest
V3
Browser access
3 permissions, 1 site pattern

How it has moved

Users
-19 since 31.08
74-97 · 11 readings
  1. 2026-08-3193
  2. 2026-09-0396
  3. 2026-09-0492
  4. 2026-09-0693
  5. 2026-09-0794
  6. 2026-09-0895
  7. 2026-09-0997
  8. 2026-09-1091
  9. 2026-09-1382
  10. 2026-09-1574
  11. 2026-09-1674
Rating
unchanged since 31.08
reviewsrating 5.00 · 11 readings
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-03reviews1rating5.00
  3. 2026-09-04reviews1rating5.00
  4. 2026-09-06reviews1rating5.00
  5. 2026-09-07reviews1rating5.00
  6. 2026-09-08reviews1rating5.00
  7. 2026-09-09reviews1rating5.00
  8. 2026-09-10reviews1rating5.00
  9. 2026-09-13reviews1rating5.00
  10. 2026-09-15reviews1rating5.00
  11. 2026-09-16reviews1rating5.00
Users
-19 since 31.08
74-97 · 11 readings
  1. 2026-08-3193
  2. 2026-09-0396
  3. 2026-09-0492
  4. 2026-09-0693
  5. 2026-09-0794
  6. 2026-09-0895
  7. 2026-09-0997
  8. 2026-09-1091
  9. 2026-09-1382
  10. 2026-09-1574
  11. 2026-09-1674
Rating
unchanged since 31.08
reviewsrating 5.00 · 11 readings
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-03reviews1rating5.00
  3. 2026-09-04reviews1rating5.00
  4. 2026-09-06reviews1rating5.00
  5. 2026-09-07reviews1rating5.00
  6. 2026-09-08reviews1rating5.00
  7. 2026-09-09reviews1rating5.00
  8. 2026-09-10reviews1rating5.00
  9. 2026-09-13reviews1rating5.00
  10. 2026-09-15reviews1rating5.00
  11. 2026-09-16reviews1rating5.00

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

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
  • Block or redirect requests by rules it declares in advance declarativeNetRequest
  • 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

Graycode Systems.

Like this one

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

  1. Simple Header Editor Describes nearly the same job, smaller audience 16 users ★ 5.0
  2. Request Add Headers Describes nearly the same job, smaller audience 68 users
  3. Modify Header Describes nearly the same job, smaller audience 1k users ★ 5.0
  4. API Header Manager Describes nearly the same job, smaller audience 39 users ★ 5.0
  5. HeaderInject Describes nearly the same job, smaller audience 20 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?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

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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.