1. Carrot predicts rating change and analys performance.

2. CF Analytics Analyse profiles. Include statistics of problems solved. A bar chart showing problems solved for each problem rating, a doughnut chart displaying tags solved across any problem and also lists a count for each tag. The ‘Unsolved Problems’ shows a count of all problems attempted with not correct verdict and also lists them.

3. CF Tracker keeps track of spent time on a particular problem.

4. Codeforces Practice Tracker you can Read overview section of this extension.

Bonus:

Dark Reader If you love to code in dark mode, this extension will apply dark mode on every website.

CF Track this website can help you solve problems contest wise.

**If any extension missing from my list which are relative and useful, comment them **