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NotebookLM Extension (Gemini Notebook) - ExtendLM

Chrome extension by ExtendLM · Productivity · Tools

  • Featured
  • Established publisher

A Chrome extension in Productivity · Tools with 50 000 users, an established extension. Audience over the last 30 days: -20 000.

Specific sites only: 17 match patterns.

What the developer says, and 5 screenshots

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

Users
50 000
Rating
4.9 (137 ratings)
Users, last 30 days
-20 000 (the store rounds this count to 10 000, so it moves only between steps)
Rating, last 30 days
+0.12 in 30 days
Version
2.6.95
Updated in the store
2026-10-30
Published
2025-12-12
Manifest
V3
Browser access
11 permissions, 17 site patterns

How it has moved

Users
-20k since 01.10
50k-70k · 12 readings
2026-10-05: released 2.6.222026-10-08: released 2.6.232026-10-10: released 2.6.422026-10-13: released 2.6.442026-10-17: released 2.6.622026-10-21: released 2.6.682026-10-28: released 2.6.882026-10-30: released 2.6.95
  1. 2026-10-0470k
  2. 2026-10-0970k
  3. 2026-10-1370kreleased 2.6.44
  4. 2026-10-1470k
  5. 2026-10-1670k
  6. 2026-10-1770kreleased 2.6.62
  7. 2026-10-1960k
  8. 2026-10-2360k
  9. 2026-10-2450k
  10. 2026-10-2550k
  11. 2026-10-2850kreleased 2.6.88
  12. 2026-10-3150k
Rating
+0.12 since 01.10
reviewsrating 4.78-4.91 · 12 readings
2026-10-05: released 2.6.222026-10-08: released 2.6.232026-10-10: released 2.6.422026-10-13: released 2.6.442026-10-17: released 2.6.622026-10-21: released 2.6.682026-10-28: released 2.6.882026-10-30: released 2.6.95
  1. 2026-10-04reviews130rating4.79
  2. 2026-10-09reviews131rating4.79
  3. 2026-10-13reviews132rating4.79released 2.6.44
  4. 2026-10-14reviews132rating4.91
  5. 2026-10-16reviews133rating4.91
  6. 2026-10-17reviews134rating4.89released 2.6.62
  7. 2026-10-19reviews134rating4.89
  8. 2026-10-23reviews135rating4.89
  9. 2026-10-24reviews136rating4.89
  10. 2026-10-25reviews136rating4.89
  11. 2026-10-28reviews137rating4.89released 2.6.88
  12. 2026-10-31reviews137rating4.89
Users
-10k since 31.08
50k-70k · 22 readings
2026-09-04: released 2.5.552026-09-07: released 2.5.722026-09-11: released 2.5.772026-09-17: released 2.5.822026-09-21: released 2.5.862026-09-24: released 2.5.892026-09-26: released 2.5.912026-09-30: released 2.5.952026-10-05: released 2.6.222026-10-08: released 2.6.232026-10-10: released 2.6.422026-10-13: released 2.6.442026-10-17: released 2.6.622026-10-21: released 2.6.682026-10-28: released 2.6.882026-10-30: released 2.6.95
  1. 2026-08-3160k
  2. 2026-09-0560k
  3. 2026-09-1360k
  4. 2026-09-1560k
  5. 2026-09-1760kreleased 2.5.82
  6. 2026-09-2060k
  7. 2026-09-2160kreleased 2.5.86
  8. 2026-09-2560k
  9. 2026-09-2660kreleased 2.5.91
  10. 2026-09-2870k
  11. 2026-10-0470k
  12. 2026-10-0970k
  13. 2026-10-1370kreleased 2.6.44
  14. 2026-10-1470k
  15. 2026-10-1670k
  16. 2026-10-1770kreleased 2.6.62
  17. 2026-10-1960k
  18. 2026-10-2360k
  19. 2026-10-2450k
  20. 2026-10-2550k
  21. 2026-10-2850kreleased 2.6.88
  22. 2026-10-3150k
Rating
+0.13 since 31.08
reviewsrating 4.76-4.91 · 22 readings
2026-09-04: released 2.5.552026-09-07: released 2.5.722026-09-11: released 2.5.772026-09-17: released 2.5.822026-09-21: released 2.5.862026-09-24: released 2.5.892026-09-26: released 2.5.912026-09-30: released 2.5.952026-10-05: released 2.6.222026-10-08: released 2.6.232026-10-10: released 2.6.422026-10-13: released 2.6.442026-10-17: released 2.6.622026-10-21: released 2.6.682026-10-28: released 2.6.882026-10-30: released 2.6.95
  1. 2026-08-31reviews113rating4.76
  2. 2026-09-05reviews114rating4.76
  3. 2026-09-13reviews116rating4.77
  4. 2026-09-15reviews117rating4.77
  5. 2026-09-17reviews121rating4.77released 2.5.82
  6. 2026-09-20reviews122rating4.77
  7. 2026-09-21reviews123rating4.77released 2.5.86
  8. 2026-09-25reviews124rating4.77
  9. 2026-09-26reviews125rating4.78released 2.5.91
  10. 2026-09-28reviews126rating4.78
  11. 2026-10-04reviews130rating4.79
  12. 2026-10-09reviews131rating4.79
  13. 2026-10-13reviews132rating4.79released 2.6.44
  14. 2026-10-14reviews132rating4.91
  15. 2026-10-16reviews133rating4.91
  16. 2026-10-17reviews134rating4.89released 2.6.62
  17. 2026-10-19reviews134rating4.89
  18. 2026-10-23reviews135rating4.89
  19. 2026-10-24reviews136rating4.89
  20. 2026-10-25reviews136rating4.89
  21. 2026-10-28reviews137rating4.89released 2.6.88
  22. 2026-10-31reviews137rating4.89

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

Specific sites only: 17 match patterns.

  • https://notebook.google.com/*
  • https://notebooklm.google.com/*
  • https://api.extendlm.com/*
Show the remaining 9
  • https://dev.extendlm.com/*
  • https://extendlm.com/*
  • https://www.extendlm.com/*
  • https://accounts.google.com/*
  • https://gemini.google.com/*
  • https://chatgpt.com/*
  • https://chat.openai.com/*
  • https://claude.ai/*
  • https://www.perplexity.ai/*
  • Attach to pages the way developer tools do debugger
  • Capture the contents of a tab tabCapture
  • See the address and title of every tab you have open tabs
Show the remaining 8

The full permission history for this extension

Version history

  1. Version 2.6.95
  2. Version 2.6.88
  3. Version 2.6.68
Show the remaining 4
  1. Version 2.6.62
  2. Version 2.6.44
  3. Version 2.6.42
  4. Version 2.6.23

What changed recently

  1. Package size changed
  2. Released version 2.6.95 (was 2.6.88)
  3. Package size changed
Show the remaining 9
  1. Store description rewritten
  2. Released version 2.6.88 (was 2.6.68)
  3. Package size changed
  4. Store description rewritten
  5. Released version 2.6.68 (was 2.6.62)
  6. Package size changed
  7. Store description rewritten
  8. Released version 2.6.62 (was 2.6.44)
  9. Package size changed

Older entries and the full day by day series are in the app.

The publisher

ExtendLM. Listed website: extendlm.com.

Like this one

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

  1. NotebookLM Tools for Gemini Notebook™ Describes nearly the same job, with a large installed audience 100k users ★ 4.6
  2. AIExportHub for NotebookLM Describes nearly the same job, smaller audience 88 users ★ 5.0
  3. Decodr - NotebookLM Power Toolkit Describes nearly the same job, smaller audience 128 users
  4. AISaver: NotebookLM Workspace Describes nearly the same job, smaller audience 78 users ★ 5.0
  5. NotebookLM Tools – Folders, Bulk Import & Prompts for Gemini Notebook™ Describes nearly the same job, smaller audience 59 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.

Compared side by side

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Users and rating on Ext Ops Panel

Markdown

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

HTML

<a href="https://extops.dev/extensions/jefclkefiknlccjcjmkkhlcfkdgcmgcm"><img src="https://extops.dev/extensions/jefclkefiknlccjcjmkkhlcfkdgcmgcm/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 2026-10-28. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built