---
title: "Private Notes for Google Calendar – Chrome extension stats, history and permissions"
description: "660 users, rated 2.78 by 9 people. Version 0.0.5, updated 2024-10-07. Requests 2 permissions."
url: "https://extensiontracker.com/extension/cfhahikbjmmkbiobhlgecilahemdfgph"
---

# Private Notes for Google Calendar

Live in the Chrome Web Store.

- Users: 660
- Rating: 2.78 from 9 ratings
- Last checked: 2026-09-26 23:01 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #29,758 of 264,703 live extensions
- Rank in Tools: #8,132 of 103,498

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

> Add private notes to Google Calendar events

- Extension ID: `cfhahikbjmmkbiobhlgecilahemdfgph`
- Developer: [Perilla Labs, Inc](https://extensiontracker.com/developer/u7c5364c835f162e1b48ec6e6d039eca2)
- Category: [Productivity › Tools](https://extensiontracker.com/category/productivity/tools)
- First published: 2024-06-25
- Last updated: 2024-10-07
- Version: `0.0.5`
- Size: 5.2 MiB
- Minimum Chrome: 88
- Languages (1): English
- Privacy policy: `https://dmitryd.notion.site/Private-Notes-for-Google-Calendar-Privacy-Policy-6976c6fa05f94f819719520039abf4f7?pvs=4`
- Chrome Web Store: <https://chromewebstore.google.com/detail/private-notes-for-google/cfhahikbjmmkbiobhlgecilahemdfgph>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Fcfhahikbjmmkbiobhlgecilahemdfgph>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-26 | 660 | 2.78 | 9 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-26.

## What it can access

From the extension's manifest, in plain language.

### Sites

- `https://us.i.posthog.com/*`: us.i.posthog.com

### Sites where it runs scripts

- `https://calendar.google.com/*`: calendar.google.com

### Browser features

- `storage`: Save settings and data in your browser

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [ReadAloud: Podcast-quality text-to-speech](https://extensiontracker.com/extension/lblodplhekfdnpmglmmnnmnfhjcjhhlc) | 46 | 5.00 | 2 | Tools |
| [TabReadReminder](https://extensiontracker.com/extension/feabkmfhdlhckilaibcpcdbighdfajho) | 15 | – | – | Workflow & Planning |
| [ProfileShare](https://extensiontracker.com/extension/kfllhjpjkfcjbnmjmpopdbchncmpahkl) | 6 | – | – | Workflow & Planning |

All 4 extensions by [Perilla Labs, Inc](https://extensiontracker.com/developer/u7c5364c835f162e1b48ec6e6d039eca2).

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 2026-09-26 23:01 UTC; next check around 2026-10-20.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “Private Notes for Google Calendar” (cfhahikbjmmkbiobhlgecilahemdfgph). Chrome Web Store data, last checked 2026-09-26. https://extensiontracker.com/extension/cfhahikbjmmkbiobhlgecilahemdfgph. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_cfhahikbjmmkbiobhlgecilahemdfgph,
  title   = {Private Notes for Google Calendar (cfhahikbjmmkbiobhlgecilahemdfgph)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-26},
  url     = {https://extensiontracker.com/extension/cfhahikbjmmkbiobhlgecilahemdfgph},
  urldate = {2026-09-28}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/cfhahikbjmmkbiobhlgecilahemdfgph>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Extension, developer and list pages come as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.