CF Stopwatch

Name: CF Stopwatch
Rating: 5 (1 reviews)
Author: pratikrkcha

Automatically tracks how long you spend on each Codeforces problem. Stops on Accepted, survives tab switches, and lets you reattempt with one click. Blends seemlessly with your codeforces theme.

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Features & Capabilities

CF Stopwatch is a lightweight and distraction-free timer designed specifically for Codeforces users. It helps you track your problem-solving time with a clean interface that blends perfectly with the Codeforces UI.

🚀 Key Features

No-Panic Mode When you open a problem, the timer waits for at least one minute before starting automatically. This gives you time to calmly read and understand the problem before the clock begins.

Manual Start Option Prefer to start the timer yourself? You can start it anytime with a single click.

Auto Freeze on Accepted As soon as your solution is accepted, the timer automatically freezes, preserving your exact solving time.

Persistent Timer The timer continues running even if you switch tabs or navigate within Codeforces — no interruptions, no resets.

Native Codeforces Look & Feel The UI is designed to match Codeforces perfectly, so it feels like a built-in feature rather than an add-on.

User Growth & Download Statistics

Add-on

By:

Daily users:

Rating:

Version:

1.0.0 Last updated: 2026-03-01

Version code:

6162272

Creation date:

2026-02-26

Risk:

Permissions:

storage
*://codeforces.com/*

Content scripts matches:

codeforces.com

Size:

32.07KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-04

Compare stats and ranking:

Ranking

# 23,194 ▲ 480

Other rankings

#73 in match keyword 27 ▲ 6#87 in stop keyword 19 ▲ 3#112 in problem keyword 8 ▲ 3#146 in watch keyword 22

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

pratikrkcha

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/cf-stopwatch/

Is CF Stopwatch Safe?

Risk impact

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, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

CF Stopwatch requires very minimum permissions.

Risk impact analysis details

High Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
Low ******* ****** ** *** ********* ******** **************

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. 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 Firefox add-on.

CF Stopwatch is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******