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JAPAN AI Browser Assistant

Chrome extension by JAPAN AI · Productivity · Tools

A Chrome extension in Productivity · Tools with 955 users, barely installed. Audience over the last 30 days: +143.

Specific sites only: 8 match patterns.

What the developer says, and 1 screenshot

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

Users
955
Rating
5.0 (3 ratings)
Users, last 30 days
+143
Rating, last 30 days
Steady over 30 days
Version
2.0.0
Updated in the store
2026-10-09
Published
2026-07-11
Manifest
V3
Browser access
11 permissions, 8 site patterns

How it has moved

Users
+143 since 10.09
812-955 · 13 readings
2026-09-10: released 1.7.342026-10-09: released 2.0.0
  1. 2026-09-10812released 1.7.34
  2. 2026-09-13833
  3. 2026-09-15847
  4. 2026-09-16871
  5. 2026-09-20895
  6. 2026-09-21889
  7. 2026-09-25876
  8. 2026-09-26851
  9. 2026-09-28855
  10. 2026-10-04930
  11. 2026-10-08940
  12. 2026-10-09945released 2.0.0
  13. 2026-10-10955
Rating
unchanged since 10.09
reviewsrating 5.00 · 13 readings
2026-09-10: released 1.7.342026-10-09: released 2.0.0
  1. 2026-09-10reviews3rating5.00released 1.7.34
  2. 2026-09-13reviews3rating5.00
  3. 2026-09-15reviews3rating5.00
  4. 2026-09-16reviews3rating5.00
  5. 2026-09-20reviews3rating5.00
  6. 2026-09-21reviews3rating5.00
  7. 2026-09-25reviews3rating5.00
  8. 2026-09-26reviews3rating5.00
  9. 2026-09-28reviews3rating5.00
  10. 2026-10-04reviews3rating5.00
  11. 2026-10-08reviews3rating5.00
  12. 2026-10-09reviews3rating5.00released 2.0.0
  13. 2026-10-10reviews3rating5.00
Users
+319 since 01.09
636-955 · 19 readings
2026-09-04: released 1.7.322026-09-10: released 1.7.342026-10-09: released 2.0.0
  1. 2026-09-01636
  2. 2026-09-02728
  3. 2026-09-04774released 1.7.32
  4. 2026-09-06778
  5. 2026-09-07784
  6. 2026-09-08803
  7. 2026-09-10812released 1.7.34
  8. 2026-09-13833
  9. 2026-09-15847
  10. 2026-09-16871
  11. 2026-09-20895
  12. 2026-09-21889
  13. 2026-09-25876
  14. 2026-09-26851
  15. 2026-09-28855
  16. 2026-10-04930
  17. 2026-10-08940
  18. 2026-10-09945released 2.0.0
  19. 2026-10-10955
Rating
unchanged since 01.09
reviewsrating 5.00 · 19 readings
2026-09-04: released 1.7.322026-09-10: released 1.7.342026-10-09: released 2.0.0
  1. 2026-09-01reviews2rating5.00
  2. 2026-09-02reviews2rating5.00
  3. 2026-09-04reviews2rating5.00released 1.7.32
  4. 2026-09-06reviews3rating5.00
  5. 2026-09-07reviews3rating5.00
  6. 2026-09-08reviews3rating5.00
  7. 2026-09-10reviews3rating5.00released 1.7.34
  8. 2026-09-13reviews3rating5.00
  9. 2026-09-15reviews3rating5.00
  10. 2026-09-16reviews3rating5.00
  11. 2026-09-20reviews3rating5.00
  12. 2026-09-21reviews3rating5.00
  13. 2026-09-25reviews3rating5.00
  14. 2026-09-26reviews3rating5.00
  15. 2026-09-28reviews3rating5.00
  16. 2026-10-04reviews3rating5.00
  17. 2026-10-08reviews3rating5.00
  18. 2026-10-09reviews3rating5.00released 2.0.0
  19. 2026-10-10reviews3rating5.00

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

Specific sites only: 8 match patterns.

  • http://localhost:4200/*
  • http://127.0.0.1:4200/*
  • https://app.japan-ai.co.jp/*
Show the remaining 5
  • https://staging.app.japan-ai.co.jp/*
  • https://app.japan-ai-staging.jp/*
  • https://qa.dev.app.japan-ai.co.jp/*
  • https://storage.googleapis.com/*
  • https://*.storage.googleapis.com/*
  • Read and change cookies on the sites it can access cookies
  • Attach to pages the way developer tools do debugger
  • See the address and title of every tab you have open tabs
Show the remaining 8
  • Run its own code on the pages it can access scripting
  • See when you navigate between pages webNavigation
  • Act on the current tab, but only after you click it activeTab
  • Schedule work to run later alarms
  • Add items to the right-click menu contextMenus
  • Show you notifications notifications
  • Open a panel beside the page sidePanel
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 2.0.0
  2. Version 1.7.34
  3. Version 1.7.32

What changed recently

  1. Now requires Chrome 125
  2. Package size changed
  3. Store description rewritten
Show the remaining 6
  1. Renamed from "JAPAN AI Browser Assistant (Beta)" to "JAPAN AI Browser Assistant"
  2. Released version 2.0.0 (was 1.7.34)
  3. Released version 1.7.34 (was 1.7.32)
  4. Now requires Chrome 120
  5. Package size changed
  6. Released version 1.7.32 (was 1.7.21)

The publisher

JAPAN AI.

Like this one

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

  1. BrowserOnly - AI Browser Assistant Describes nearly the same job, smaller audience 8 users
  2. Genspark Describes nearly the same job, with an established audience 40k users ★ 4.5
  3. AI Browser Assistant Describes nearly the same job, smaller audience 2 users
  4. JasprAi: AI Web Agent & Automation Describes nearly the same job, smaller audience 41 users ★ 5.0
  5. Volnyn AI — Browser Agent Describes nearly the same job, smaller audience 6 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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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.