Do you regularly use codeforces ?
If so you would have noticed that sometimes it takes quite a long time for them to judge your submission . Why stare at the submission's page till then? Let the extension check the result of your last submission while you continue to solve problems. Additionally, celebrate your ACs with apt gifs.
This extension comes in handy during contests where time is crucial. However it works even during practice sessions and virtual contests.
Once you enter your handle on the popup page and make a submission, the extension starts working. When you make a new submission, the extension starts checking if the result is ready. Once ready, it displays the verdict on all codeforces pages. It also shows the problem name and a suitable gif reaction to the verdict. Once you've acknowledged the result, you can close the gif on one tab and gifs on all tabs will be closed automatically.
Your data stays with you because I can't afford a server. The extension requests permission to display notifications, access browser tabs and access your codeforces data. These permissions are necessary for the extension to work and no malicious actions will be run on the background. This project is open source so if you are still not convinced, you can take a look at the source code -
https://github.com/Solai-Adithya/GifForces
