Are you tired of constantly opening new tabs just to check a user's profile? Maybe you're browsing standings or scrolling through comments and want to quickly check a user's peak rating or organization, or perhaps add them as a friend. Introducing Codeforces Profile Preview — a seamless way to view user profiles without leaving the page!
Profile Preview

Just hover over any username link on Codeforces, and a detailed profile card will pop up instantly. It displays:
- Rank & Rating (Current and Peak)
- Profile Picture
- Contribution & Blog Entries
- Friend Count & Last Visit
- Organization, City, and Country
Plus, you can add or remove friends directly from the preview card without ever leaving the page.
Installation
Chrome Extension: Install directly from the Chrome Web Store.
Firefox Add-on: Install directly from Firefox Add-ons.
User Script: If you prefer Tampermonkey or Violentmonkey, you can install the script from GreasyFork or GitHub Gist.
Source Code: Checkout the code at GitHub.
What are you waiting for? Try it! Install it and hover over my username ⟶ SilverTongue1729
If you find this tool useful, please consider leaving a review on the Chrome Web Store. Your feedback helps a lot!
UPDATE:
- Firefox Support: The extension is now also available as a Firefox Add-on!
- Bug Fix: Fixed an issue where users with negative ratings were incorrectly displayed as "Unrated"








Auto comment: topic has been updated by SilverTongue1729 (previous revision, new revision, compare).
Auto comment: topic has been updated by SilverTongue1729 (previous revision, new revision, compare).
Can you add for FireFox too?
Also, it looks great on the review!
Sure, will do it soon. For now you can use a user script manager extension like TamperMonkey, and then install this script from GreasyFork.
Thanks!
Any updates on the firefox version?
Yes, the Firefox Add-on has also been published!
Wonderful extension!
Cool Extension,Loved it!!!
SilverTongue1729 orz!
Extensions was crazy bro! And also it's great to meet you at ICPC Chennai Regionals!
Auto comment: topic has been updated by SilverTongue1729 (previous revision, new revision, compare).
it's great!