LeetCode Friends Rank Checker

LeetCode Friends Contest Tracker Extension 1. Enhance LeetCode contest pages by following friends and comparing their performance with global rankings. 2. Add friends by clicking the star icon next to any username on a LeetCode profile. 3. Use the “Friends” button on contest ranking pages to filter the leaderboard to your followed users. 4. If no data is cached, a fetching modal appears while contest results load. 5. Retrieves up to 12,500 rankings in about 100 seconds using concurrent batched requests. 6. Caches contest rankings and friend lists in Chrome local storage for instant reloads. 7. Displays country flag emojis, username, rank, total score, finish time (with penalties) and per‑problem times. 8. Popup dashboard (click extension icon) lists saved friends with profile links, current contest ratings and last submission dates. Source code: https://github.com/JaishreeramCoder/leetcode-friends-contest-tracker