---
title: "toCalendar – Chrome extension stats, history and permissions"
description: "275 users, rated 3.67 by 12 people. Version 1.4.0, updated 2025-08-01. Requests 2 permissions."
url: "https://extensiontracker.com/extension/iffkflhcbfgfcendldlddpgpfbikibjd"
---

# toCalendar

Live in the Chrome Web Store.

- Users: 275
- Rating: 3.67 from 12 ratings
- Last checked: 2026-09-27 02:57 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #43,820 of 264,703 live extensions
- Rank in Workflow & Planning: #10,390 of 44,474

## The listing

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

Summary from the listing:

> Add new events to Google Calendar from every websites you visit.

- Extension ID: `iffkflhcbfgfcendldlddpgpfbikibjd`
- Developer: [lamune](https://extensiontracker.com/developer/u56f1cc3314672766b7cb65cd92cc21ed)
- Category: [Productivity › Workflow & Planning](https://extensiontracker.com/category/productivity/workflow)
- First published: 2011-08-11
- Last updated: 2025-08-01
- Version: `1.4.0`
- Size: 186 KiB
- Minimum Chrome: 88
- Languages (2): English, 日本語
- Website: `http://juuc.tumblr.com/`
- Chrome Web Store: <https://chromewebstore.google.com/detail/tocalendar/iffkflhcbfgfcendldlddpgpfbikibjd>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Fiffkflhcbfgfcendldlddpgpfbikibjd>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-27 | 275 | 3.67 | 12 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-27.

## What it can access

From the extension's manifest, in plain language.

### Browser features

- `contextMenus`: Add items to the right-click menu
- `tabs`: Read the addresses and titles of your tabs

## 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 2026-09-27 02:57 UTC; next check around 2026-10-11.

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

## Cite this page

Extension Tracker. “toCalendar” (iffkflhcbfgfcendldlddpgpfbikibjd). Chrome Web Store data, last checked 2026-09-27. https://extensiontracker.com/extension/iffkflhcbfgfcendldlddpgpfbikibjd. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_iffkflhcbfgfcendldlddpgpfbikibjd,
  title   = {toCalendar (iffkflhcbfgfcendldlddpgpfbikibjd)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-27},
  url     = {https://extensiontracker.com/extension/iffkflhcbfgfcendldlddpgpfbikibjd},
  urldate = {2026-09-28}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/iffkflhcbfgfcendldlddpgpfbikibjd>. 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`.