Giving write access to all users is a big security issue in my
opinion... if every user can replace the system-wide browser & mail
client, a badly intentioned user (or even a trusted one who got infected
by a malware) can for example replace the browser with a backdoored one
(e.g. including a key logger).
> Automatic update of Firefox even with no user logged on (Windows x64)?
> <
http://groups.google.com/a/mozilla.org/group/enterprise/t/5dbf4b163b8362a6?utm_source=digest&utm_medium=email>
> "Jan-Peter Rühmann" <
jan-...@ruehmann.name>: Jan 20 09:41AM +0100
>
> These are the Commands I am using to set the rights so that Thunderbird
> and Firefox can Update itself.
>
> sudo chown root:users -R /opt/firefox
>
> sudo chmod g+w -R /opt/firefox
>
> sudo chown root:users -R /opt/thunderbird
>
> sudo chmod g+w -R /opt/thunderbird
>
> MDHR-e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
>