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[Discuss] memory management

You can override its behavior my modifying the desktop file 
(/usr/share/applications/firefox.desktop in Gnome 3)
The statement 'Exec=firefox %u' is the line to modify.

You could place your modified copy in ~/.local/share/applications

I have not tried this, but it should work.

Instead of su -, use 'sudo -u <user> firefox', and update /etc/sudoers 
not to require a password for this.
For instance:
you <user> = NOPASSWD: /usr/bin/firefox

On 06/21/2015 12:20 AM, Matthew Gillen wrote:
> On 6/20/2015 4:18 PM, Mike Small wrote:
>> Matthew Gillen <me at> writes:
>>> going to start swapping if it can. What I want for desktop environments
>>> is behavior like: if you run out of memory, kill the thing that's
>>> hogging the most.  My typical case is that if there is a process using a
>>> ton of memory, it's probably doing something wrong (e.g. javascript, or
>>> eclipse going into a death spiral because of the awful Android plugin),
>>> and /that/ is what I want OOM-killer to murder.
>>> I suppose the right answer is to wrap the problem programs in a script
>>> so that every time I start them I can
>>>    echo 999 > /proc/[firefox-pid]/oom_score_adj
>> What about creating a second, less privileged user for running firefox
>> and using ulimit to keep it down to size?  There are good reasons to not
>> run firefox as your main user anyway, at least not for general browsing.
>> I do this (minus the ulimit part), with the non-privileged firefox also
>> having restrictive plugins. For banking and a small number of other
>> sites I run firefox as my main user with no plugins. That way I don't
>> have to worry about librejs or requestpolicy messing up a financial
>> transaction. And if a site takes advantage of a firefox exploit it's
>> somewhat contained, assuming it's not my bank that hosts the exploit.
> That's not a bad idea.  I've found that if you use
>    su - <username>
> then you can run X programs as another user without trouble.
> Matt
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Jerry Feldman <gaf at>
Boston Linux and Unix
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