Since I'm using those hints from time to time, I've decided to put them here, so I don't need to google everytime I need them.
Gnome 3 autocomplete crash fix
Well to me honest, this isn't a fix but just a workaround, but hey! Wokrs for me ;)
sudo chattr +i ~/.local/share/recently-used.xbel
Filezilla drag&drop crash
sudo apt-get install curl
curl http://apt.wxwidgets.org/key.asc | sudo apt-key add -
Now let's add to /etc/apt/sources.list file:
deb http://apt.wxwidgets.org/ natty-wx main
deb-src http://apt.wxwidgets.org/ natty-wx main
and then:
sudo apt-get update
sudo apt-get install python-wxgtk2.8 python-wxtools wx2.8-i18n
Ubuntu shutdown without admin password
To do this, we just need to change the policy for shutting down. Edit the /usr/share/polkit-1/actions/org.freedesktop.consolekit.policy file and replace:
<action id="org.freedesktop.consolekit.system.stop-multiple-users">
<description>Stop the system when multiple users are logged in</description>
<message>System policy prevents stopping the system when other users are logged in</message>
<defaults>
<allow_inactive>no</allow_inactive>
<allow_active>auth_admin_keep</allow_active>
</defaults>
</action>
to:
<action id="org.freedesktop.consolekit.system.stop-multiple-users">
<description>Stop the system when multiple users are logged in</description>
<message>System policy prevents stopping the system when other users are logged in</message>
<defaults>
<allow_inactive>no</allow_inactive>
<allow_active>yes</allow_active>
</defaults>
</action>
Same for rebooting:
<action id="org.freedesktop.consolekit.system.restart-multiple-users">
<description>Restart the system when multiple users are logged in</description>
<message>System policy prevents restarting the system when other users are logged in</message>
<defaults>
<allow_inactive>no</allow_inactive>
<allow_active>auth_admin_keep</allow_active>
</defaults>
</action>
to:
<action id="org.freedesktop.consolekit.system.restart-multiple-users">
<description>Restart the system when multiple users are logged in</description>
<message>System policy prevents restarting the system when other users are logged in</message>
<defaults>
<allow_inactive>no</allow_inactive>
<allow_active>yes</allow_active>
</defaults>
</action>