Carrot predicts rating change and analys performance.
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.
CF Tracker keeps track of spent time on a particular problem.
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 **
These're cool thank you so much<3