CF-Predictor CF-Predictor

This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.

CF-Predictor is a Chrome extension by Wsl_F. It had 40,000+ weekly active users and an average rating of 4.77 before it was removed from Chrome Web Store 9 days ago. CF-Predictor is similar to Codeforces Enhancer and Codeforces++. The last published version was 1.3.1, updated 10 months ago.

This extension was removed from Chrome Web Store on 2022-09-21
By: Wsl_F
Users: 40,000+
Rating: 4.77 (130)
Version: 1.3.1 (Last updated: 2021-12-01)
Featured: No
Size: 87.14K
Email: Click to see
A huge number of your nerve cells die every time when you wait for a rating update on Codeforces. Stop this! From now you could use this extension, it partly modifies the contest standings page and shows approximate rating changes for every contestant.
Risk impact

CF-Predictor requires some risky permissions and may not be safe to use. Exercise caution when installing this extension. Review carefully before installing.

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypass your security settings, and access your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Risk likelihood

CF-Predictor may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood measures the probability that a Chrome extension may turn malicious. This is determined by the publisher and the Chrome extension reputation on Chrome Web Store, the amount of time the Chrome extension has been around, and other signals about the Chrome extension. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Chrome extension, especially ones with higher risk impact and/or higher risk likelihood.

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User reviews
It is really amazing and it gives a very approximate number to the one given by CF later.
by Youssef Amir Youssef Amir, 2022-09-19

Just wanna say thank you
by Rifath Sahriar Rifath Sahriar, 2022-08-26

Kudos to the developer!!
by Rohit Shukla Rohit Shukla, 2021-09-09
View all user reviews
Promo images
CF-Predictor large promo image
Large promo image
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Codeforces++ Codeforces++
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Track your practice progress on Codeforces.

The manifest file declares the requirements and permissions that a Chrome extension will have access to. By reviewing the manifest, you may be able to determine if a Chrome extension is over-reaching (for example, if an extension is overriding your new tab page, or search provider, or requesting access to your web activities without any good reason).

  "update_url": "",
  "name": "CF-Predictor",
  "short_name": "CF-Predictor",
  "version": "1.3.1",
  "description": "This extension predicts rating changes for Codeforces. It shows approximate deltas during and after the contest.",
  "manifest_version": 3,
  "icons": {
    "48": "static/icon48.png",
    "64": "static/icon64.png",