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Preview of CodeforcesSync

CodeforcesSync by Nazrul Islam

Automatically sync accepted Codeforces solutions to GitHub, track solving progress, and monitor your competitive programming statistics.

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About this extension
CodeforcesSync is an open-source Firefox extension that automatically synchronizes your accepted Codeforces solutions to a GitHub repository while providing useful competitive programming statistics directly in your browser.
  • Automatically sync accepted Codeforces submissions to GitHub.
  • Secure GitHub authentication using OAuth 2.0 with PKCE.
  • View your current rating, maximum rating, contribution, and profile information.
  • Track your daily solving streak and submission activity.
  • Manage repositories and synchronization settings directly from the extension.
  • Fast, lightweight, and privacy-friendly with no analytics or telemetry.
  1. Install the extension.
  2. Open the extension from the Firefox toolbar.
  3. Sign in with your GitHub account.
  4. Enter your Codeforces handle.
  5. Select or create a GitHub repository.
  6. Solve problems on Codeforces and synchronize your accepted solutions with one click.


CodeforcesSync does not collect analytics, advertisements, or personal tracking data.

GitHub authentication is performed securely using OAuth 2.0 with PKCE.

The project is fully open source and community maintained.
Developer comments
This add-on is open source.

Source repository:
https://github.com/mhdnazrul/CodeforcesSync

Build instructions are included in the source package (BUILD.md).

Notes:
  • The extension uses Manifest V3.
  • OAuth authentication uses GitHub OAuth with PKCE.
  • Firefox uses browser.identity.launchWebAuthFlow().
  • The innerHTML warnings reported by automated validation originate from the bundled React DOM runtime (React 19.x). The extension source code does not use innerHTML, outerHTML, insertAdjacentHTML, or dangerouslySetInnerHTML.
  • The extension does not collect telemetry or analytics.
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Permissions and data

Required permissions:

  • Access browser tabs

Optional permissions:

  • Access your data for api.github.com
  • Access your data for codeforces.com

Data collection:

  • The developer says this extension doesn't require data collection.
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More information
Version
2.3.2
Size
152.69 KB
Last updated
6 days ago (Jun 29, 2026)
Version History
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