Ok I looked PPA up... and you’re right, not something to put on your machine lightly. May try to figure out a different way to get firejail up and running. Need to figure out how to get rid of the ppa first though.
I’m sure it’s probably ok- but i just feel a bit funny abotu goign that route- I downloaded the fale from sourceforge, and checked the checksum # which proved to be the right one, then installed it from there by rightclicking and choosing the gdebi package installer from the list- I also installed firetools, which is the graphical interface for firejail, and it’s all working now-
At least i think so- I run the command firejail —list - and it shows firefox running in the list, so i assume my firefox is now running in firejail-