Ext Ops Panel
Open dashboard

Codeforces Contest Viewer

Chrome extension · Productivity · Tools

A Chrome extension in Productivity · Tools with 25 users, barely installed. Audience over the last 30 days: -1.

Specific sites only: 3 match patterns.

What the developer says, and 3 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
25
Rating
not rated yet
Users, last 30 days
-1
Version
2.1.0
Updated in the store
2025-06-26
Published
2025-06-05
Manifest
V3
Browser access
2 permissions, 3 site patterns

How it has moved

Users
-1 since 04.10
25-30 · 13 readings
  1. 2026-10-0426
  2. 2026-10-0825
  3. 2026-10-0926
  4. 2026-10-1025
  5. 2026-10-1126
  6. 2026-10-1628
  7. 2026-10-2130
  8. 2026-10-2229
  9. 2026-10-2330
  10. 2026-10-2429
  11. 2026-10-2830
  12. 2026-11-0129
  13. 2026-11-0325
Users
unchanged since 31.08
23-30 · 25 readings
  1. 2026-08-3125
  2. 2026-09-0227
  3. 2026-09-0423
  4. 2026-09-0624
  5. 2026-09-0723
  6. 2026-09-0824
  7. 2026-09-0923
  8. 2026-09-1324
  9. 2026-09-1525
  10. 2026-09-2126
  11. 2026-09-2728
  12. 2026-09-2827
  13. 2026-10-0426
  14. 2026-10-0825
  15. 2026-10-0926
  16. 2026-10-1025
  17. 2026-10-1126
  18. 2026-10-1628
  19. 2026-10-2130
  20. 2026-10-2229
  21. 2026-10-2330
  22. 2026-10-2429
  23. 2026-10-2830
  24. 2026-11-0129
  25. 2026-11-0325

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 3 match patterns.

  • https://accounts.google.com/*
  • https://www.googleapis.com/*
  • https://codeforces.com/*
  • Sign you in with a Google account identity
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

Like this one

Listings the catalog judges closest in what they say they do.

  1. CF Calendar Describes nearly the same job, smaller audience 13 users
  2. ContestWatch Describes nearly the same job, smaller audience 7 users ★ 5.0
  3. Contest Calendar Describes nearly the same job, smaller audience 364 users ★ 4.6
  4. nextContest - Contest Tracker Describes nearly the same job, smaller audience 253 users ★ 4.9
  5. Contest Radar Describes nearly the same job, smaller audience 15 users ★ 5.0

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

Want this mark on your extension in our catalog?

Verify that you are its author and you can show this mark on the card, with live banners for your site and README. How verification works

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

Connect it in a minute See what the panel does
Add a badge to your README or site

The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/kfohlggifaagdajaklgenjenljmlfkld/badge.svg)](https://extops.dev/extensions/kfohlggifaagdajaklgenjenljmlfkld)

HTML

<a href="https://extops.dev/extensions/kfohlggifaagdajaklgenjenljmlfkld"><img src="https://extops.dev/extensions/kfohlggifaagdajaklgenjenljmlfkld/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-03. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built