Thanks to all. I'd forgotten that the file would be overridden with each
update of Firefox. For the moment I've written a quick shortcut into my
bash aliases file, but you got me looking at some ideas to create another
firefox.desktop file that I can use to launch the application with the
firejail parameters.

On Wed, Dec 23, 2020 at 7:02 PM Michael Butash via PLUG-discuss <
plug-discuss@lists.phxlinux.org> wrote:

> Agreed customizations to firefox launchers will break with every update.
> I run into this with arch and firefox that I add a custom command to add a
> menu for starting with profile chooser, and have to add the file back every
> time I update annoyingly.
>
> -mb
>
>
> On Wed, Dec 23, 2020 at 4:56 PM Matt Graham via PLUG-discuss <
> plug-discuss@lists.phxlinux.org> wrote:
>
>> On 2020-12-23 16:39, Steve B via PLUG-discuss wrote:
>> > Is it possible to edit the firefox.desktop file such that I can
>> > invoke "firejail --apparmor firefox -no-remote" as the default manner
>> > in which the application starts? If so can someone point me to a guide
>> > or provide me with an example? I'm having some difficulty finding a
>> > resource through Google.
>>
>> KDE:  right-click on the application menu, "Edit Applications",
>> Internet->Mozilla Firefox, edit the Command: entry so that it executes
>> what you want instead of the default "firefox %u" command.
>>
>> Everything:  Just find whatever .desktop file is being used by your
>> desktop environment with "locate \*desktop | grep firefox" (there may be
>> a few of them.)  Then edit the Exec= line so that it invokes the command
>> line you want instead of the default "firefox %u".  This will almost
>> certainly break every time firefox gets updated though.
>>
>> Alternatively, copy the default .desktop file to wherever your Desktop
>> directory is, then edit that, and always launch your firefox from that
>> icon/whatever instead of the system menu.  That will get rid of the
>> "menu entry goes back to default after update" problem.
>>
>> --
>> Crow202 Blog: http://crow202.org/wordpress
>> There is no Darkness in Eternity
>> But only Light too dim for us to see.
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