Did your Brave browser application become unresponsive and refuse to close or reboot?

On Ubuntu, you can force quit the Brave browser application by using the pkill command in your terminal.

If you don't already have a terminal window open, you can open one with the CTRL+ALT+T keyboard shortcut.

Then, execute this command in your terminal to kill all processes running the Brave browser on your machine:

    
      sudo pkill -9 brave
    
  

This command runs the pkill command with the -9 option, which is the SIGTERM signals used to tell a process to terminate.

After successfully running that command, all the instances of Brave browser running on your machine should now be closed and terminated.

If you don't want to kill all the Brave browser processes running on your machine, you can also kill individual processes. To do this, you need to first list all the PIDs (Process Identifiers) running Brave browser and then use the sudo kill -9 PID command to kill a process with a specific PID.

You can list all the processes running the Brave browser with this command:

    
      ps aux | grep brave
    
  

The command uses ps aux to get all the processes running on your machine and then grep brave to filter out everything but processes running Brave browser.

This will output something that looks like the following:

    
      nick      5722  0.0  0.0 393184  8392 ?        S    00:49   0:00 /usr/lib/brave/brave ...
    
  

The first number you see in the output after the username (5722 in the example output above) is the PID for that specific process.

You can also modify the output to only show the PID numbers:

    
      ps aux | grep brave | awk '{ print $2 }'
    
  

This output will look like this:

    
      5722
      6215
      6429
    
  

Now that you have the PID/s for the process running Brave browser, you can end it with this command:

    
      sudo kill -9 PID
    
  

That will kill only the specific PID number you give to the command.

Thanks for reading!