agul had created Codeforces Enhancer Chrome Extension way back . Original source code : link
Since it was working for http CF site but not https. so now it stopped working. I did a little bit of changes in the code (changed http to https) and added support for newer languages like C++14 ,C++17 , JAVA11 etc.
Brief description of features:
Colorize standings by used programming language
Based on userscript by yak_ex . link
Multiple rating graph comparing
Based on userscript by yak_ex. link.
Hiding solved problems in the Problemset
Based on userscript by pablo.aguilar. link.
How to download :
Download and extract this zip file . link.
Chrome -> options ->More Tools -> Extensions -> Developer Mode Enable -> Load Unpacked.
Enjoy