ProtonMailCounter

Name: ProtonMailCounter
Rating: 4.25 (12 reviews)
Author: Kristian Kalm

Unofficial Proton Mail counter extension for chrome

As of June 2026, ProtonMailCounter has 1,000 users and a 4.25/5 rating from 12 reviews in the Communication category.

Kristian Kalm Communication

Chrome Web Store ↗.crx

Users0%

1.0K

1,000

Rating+1.7%

4.25

12 reviews

Reviews+9.1%

Version

0.1.4

Manifest V3

History

4 snapshots

Tracking since Apr 17, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 17, 2026	1.0K	4.18	11	0.1.4
Apr 26, 2026	3.0K	4.18	11	0.1.4
May 7, 2026	3.0K	4.18	11	0.1.4
Jun 1, 2026	2.0K	4.25	12	0.1.4
Now	1.0K	4.25	12	0.1.4

Permissions & access

Permissions: tabsstoragealarms
Host access: None declared

Screenshots

About

Source code is available at
https://github.com/KristianKalm/ProtonMailCounter

* There is official counter for the bookmark in Proton mail *
Settings -> Messages and composing -> Show unread count in Favicon

Unofficial Proton Mail counter extension for chrome, refreshes the count every 15 minutes.

Extension launches pinned proton tab for 5 seconds in background to get the unread count, this allows to get the unread count without any credentials needed for the extension itself.

Extension only has access to tab name, and gets the reads the value from "(1) Inbox", which is only displayed when the unread count favicon is off. 
If extension is not working check that the tab title matches this format.

ProtonMail
https://mail.proton.me/