Extension Tracker

Calendar Background Customizer

5,000 users Rated 3.17 from 6 ratings Last updated 20 Jul 2026

By Seiri Live in the Chrome Web Store haminfolhoibklkkjmkjmmgnmbkgmehe Search Google ↗ Last checked 6 Nov 2026, 22:45 UTC

The listing

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

Customize The Background Of Google Calendar.Summary from the listing
Developer
Seiri
Enhanced Safe Browsing
Trusted. What this means →
Category
Make Chrome Yours › Accessibility
First published
25 Feb 2024
Last updated
20 Jul 2026
Version
1.1.0
Size
44.53 KiB
Minimum Chrome
88
Languages
54 languages

Deutsch, English, English (United Kingdom), English (United States), Filipino, Indonesia, Kiswahili, Melayu, Nederlands, Tiếng Việt, Türkçe, català, dansk, eesti, español, español (Latinoamérica), français, hrvatski, italiano, latviešu, lietuvių, magyar, norsk, polski, português (Brasil), português (Portugal), română, slovenčina, slovenščina, suomi, svenska, čeština, Ελληνικά, български, русский, српски, українська, עברית, العربية, فارسی, मराठी, हिन्दी, বাংলা, ગુજરાતી, தமிழ், తెలుగు, ಕನ್ನಡ, മലയാളം, ไทย, አማርኛ, 中文（中国）, 中文（台灣）, 日本語, 한국어

Website
https://chrome-tool.github.io/
See Chrome Web Store page ↗ View its code or download CRX ↗
Users over time As shown on the Chrome Web Store
4.9K5K5.1KTracking began 27 Sep 202627 Sep4 Oct11 Oct18 Oct25 Oct1 Nov2026-09-27: 5,000 users2026-10-04: 5,000 users2026-10-10: 5,000 users2026-10-17: 5,000 users2026-10-24: 5,000 users2026-10-30: 5,000 users2026-11-06: 5,000 users5,0004.9K5K5.1KTracking began27 Sep11 Oct25 Oct2026-09-27: 5,000 users2026-10-04: 5,000 users2026-10-10: 5,000 users2026-10-17: 5,000 users2026-10-24: 5,000 users2026-10-30: 5,000 users2026-11-06: 5,000 users5K
Average rating
3.103.2027 Sep11 Oct25 Oct3.173.103.2027 Sep11 Oct25 Oct3.17
Number of ratings
627 Sep11 Oct25 Oct6627 Sep11 Oct25 Oct6
New version One point per check. Source: the extension's public Chrome Web Store listing.
Show the numbers
CheckedUsersRatingRatings
2026-11-065,0003.176
2026-10-305,0003.176
2026-10-245,0003.176
2026-10-175,0003.176
2026-10-105,0003.176
2026-10-045,0003.176
2026-09-275,0003.176
Users, 7 days
No change
since a week ago
Users, 30 days
No change
+0.0%
Rank
#10,132
by users, of 292,131 extensions
In its category
#593
of 8,374 in Accessibility

What changed

Every change found on a check, newest first

No changes found since tracking began on 27 Sep 2026.

Developer history

Moves to another publisher account and new contact emails, newest first

No move to another account and no new contact email since tracking began on 27 Sep 2026.

We know contact emails only by a keyed hash, so they're never shown. Recent account and contact changes →

What it can access

From the extension's manifest, in plain language

Sites
  • *://chrome-tool.github.io/*chrome-tool.github.io
  • *://wallpapers-collection.github.io/*wallpapers-collection.github.io
Sites where it runs scripts
  • *://calendar.google.com/*calendar.google.com
Browser features
  • storageSave settings and data in your browser
  • tabsRead the addresses and titles of your tabs

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All 14 extensions by Seiri →

About this data

Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 6 Nov 2026, 22:45 UTC; next check around 14 Nov 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “Calendar Background Customizer” (haminfolhoibklkkjmkjmmgnmbkgmehe). Chrome Web Store data, last checked 2026-11-06. https://extensiontracker.com/extension/haminfolhoibklkkjmkjmmgnmbkgmehe. Accessed 2026-11-13.
BibTeX
@misc{extensiontracker_haminfolhoibklkkjmkjmmgnmbkgmehe,
  title   = {Calendar Background Customizer (haminfolhoibklkkjmkjmmgnmbkgmehe)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-06},
  url     = {https://extensiontracker.com/extension/haminfolhoibklkkjmkjmmgnmbkgmehe},
  urldate = {2026-11-13}
}

The data is free to reuse under CC BY 4.0.

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