Interestingly, you may have just fucked yourself, because the sudo session is maintained whilst launching Firefox. If we create a script 1: #!/bin/sh ec

Interestingly, you may have just fucked yourself, because the sudo session is maintained whilst launching Firefox. If we create a script 1: #!/bin/sh echo "I'm doing something secure" And then script 2: #!/bin/sh echo "I'm doing something insecure". sudo echo "I'm doing something malicious". Then run: $ sudo ./script1.sh; ./script2.sh Looks like Firefox has access to your banking user :)