Welcome to Linux, @Krusty My opinion is: Use only the AppArmor profiles which are enabled by default - and the Firefox profile doesn't belong to them. I recommend to rather sandbox, e.g., Firefox and Chrome by using Firejail. It provides a very tough sandbox and is considerably less troublesome than AppArmor - particularly for newbies. Besides, using AppArmor and Firejail alongside for the same applications can be difficult at times. Install Firejail from the repositiories and execute the two commands shown here. The second command takes care that all installed applications for which profiles are available will be sandboxed by Firejail . You can find more information on the Firejail homepage, particularly here. If you have any questions you can ask in the Firejail thread in this forum.
Thank you @summerheat , I will look into Firejail again later today but what I seen the other day made me think it was complicated. I'll check out your links too. Thanks again.
Another question - when or if I minimise Firefox, how do I maximise it again? In Windows I can just click the icon on the Task Bar, but doing similar in Linux (click the icon on the Panel) starts a whole new Firefox session. There's no right-click option to maximise it either. Thanks.
I entered: Code: firecfg --fix-sound Was asked to sign out and back in. Did that. Entered: Code: sudo firecfg Now Firefox won't open. Help please.
Ah - yes! You're using Linux Mint, and on Debian/Ubuntu-based distros there is a separate firejail-profiles package which must be installed as well. I guess you didn't do that. So please install it and repeat those 2 commands again. I hope that helps. I suggest that further Firejail-related questions should be discussed in the related thread.
Weird. Did you try to logoff and logon again? EDIT: Sorry - I hadn't seen your post in the other thread.
And now the Software Updater can't connect. "Could not refresh the list of updates". Firefox is default browser.
At this point I'm almost tempted to uninstall Firejail and undo its changes. Is there an easy way to do that without restoring a Snapshot?
I just used a command you posted in that other thread: Code: sudo firecfg --clean Firefox is working again. Update Manager still fails.
Well, Mint ended up being a failed experiment once again. I can no longer use the Update Manager, even after restoring a System Snapshot. Thanks Firejail! This was supposed to be a fun experiment, not an another PITA headache. If I wanted that I would have , and now probably will return to Windows. I thank those that have helped me with Linux but I don't have the patience to troubleshoot issues that weren't affecting me before I installed Firejail.
I'm sorry to read that , and I can understand your frustration. However, I still cannot see why Firejail should be responsible for your problems as it does not affect any update managers and doesn't alter any network or repository settings so there must be another reason. Did you try again after a reboot? Regarding Firefox, I'm also puzzled how that can happen. I've never seen that before. Did you update your system before installing it? Which version was installed?
I'm sorry to say that the machine was running flawlessly until I installed Firejail. Firefox was updated to 66.0.2 before the install. The Software Updater worked fine too but would not after Firejail was installed. My search engine finds many results with Firefox + Firejail, but I honestly never looked for issues with the Software Updater. I'd had enough by then.
Um...... wouldn't it be better instead of enabling FireJail for all applications by default (firecfg command) to just try first what works and what not with simply typing firejail <program> ? Like: firejail firefox ? After all, if AppArmor is on by default (like the similar kernel level protection, SELinux is in Fedora) and then you also enable all the software and services in your system to use FireJail, I would expect things to start breaking .... After all, there is no hurry to dive into advanced and complicated security hardening by enabling all the stuff on right away.
Don't give up!! A good intro to Linux is in a VM so you can explore, learn and make mistakes without consequence. I use a 'rolling' VM and create a new snapshot regularly and delete all the old ones so it doesn't take up too much space.