Finding a bug in firefox

Hi, I’m a student at Coventry University and currently studying Open Source Development, for an assignment I received a question to identify a known bug from the open source software, and since I am doing research on firefox and new to open source studies; could anyone help me to identify any known bug in firefox?? thank you in advance :slight_smile:

Hello ! You can find every known bugs on

thank you, for your help!

Some bugs are marked as “good-first-bug” and has a mentor assigned so those can be a good place to start, for example: