Fastmail Checker icon

Fastmail Checker

by Mave · Communication
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Fastmail unread checker with badge, sound notifications, and DND.

Users
24
−1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#141K
#118K among extensions
Version
0.1.5
updated 9 Mar 2026

Users

monthly, 7 months
01428Mar 2026Jul 2026Oct 2026
Latest, 15 Oct 2026: 24 usersMove the mouse over the chart for any month

Ratings count

monthly, 7 months
001Mar 2026Jul 2026Oct 2026
Latest, 15 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Fastmail Checker

Inspired by Checker Plus for Gmail -- Fastmail Checker! Show your unread as a badge in your browser toolbar. Degoogle your life, and get up and running with Fastmail.

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days−1−4.0%00.00
6 months+19+380.0%00.00

Version history

2 versions recorded
0.1.59 Mar 2026
0.1.35 Mar 2026

Details

Category
Communication
First seen
5 Mar 2026
Size
118 KB
Languages
en-GB
Pricing
Free
Privacy policy
fastmail-checker.mave.me
Support
fastmail-checker.mave.me
Extension ID
ojnlgdnbaakolkkphigplmhephplepco

Permissions and risk

Low riskimpact 1, likelihood 2
Permissions
alarmsnotificationsstoragecontextMenusidentityoffscreen
Site access
https://fastmail-checker.mave.me/*

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