Facebook notifications gone crazy

[truce]

Hi have just updated the firmware to .205 on a C5303 with PC Companion.
After restored the backup of the old settings i now have a very strange situation.

The notification sound( also for the messages) has been replaced by one of my song on the mobile.
The notification doesn't stops until i press something on the mobile.
Is it possible to change it?
I wanted to unistall the application but it is not possible.

[LukaLuxXD]

If you have the latest version of Facebook, try this:

-Open Facebook

-Swipe right 3 times

-Scroll down and find app settings:

[LukaLuxXD · Accepted solution]

Then, scroll down untill you see notification settings, find notification ringtone, as seen in the screenshot below, and choose a ringtone. You can't deinstall the app without root acces, but you can disable it by going into Settings>Apps>Facebook>Disable

[truce]

Thanks a lot!