How to get rid of the Banner 'media contains digital photos' downloads bluetooth linux mate for ever [solved]

Problem:
When I look in my SD card, caja throws up a stupid blue banner saying "The media contains digital photos"

Cause:
Not entirely sure.  Related to gthumb-import.desktop, which has the text "Import with gThumb" which is in /usr/share/applications/gthumb-import.desktop
Nothing in mateconf-editor to tweak as well.  Bad coding...
Uninstalling  gthumb and any other image program got rid of the banner, but that is not desirable.


Solution:
Open/create the file /home/$USER/.local/share/applications/mimeapps.list and add these lines (reference http://www.freedesktop.org/wiki/Specifications/mime-actions-spec)

[Removed Associations]
x-content/image-dcf=gthumb-import.desktop;
x-content/image-picturecd=gthumb-import.desktop;brasero.desktop;

then update the mime database and killall instances of caja
sudo update-mime-database /usr/share/mime
pkill caja

Do not get happy and try modifying /usr/share/applications/mimeinfo.cache as it will get overwritten without warning.
Reference: http://www.allquests.com/question/1705936/This-media-contains-digital-photos.html


Had a similar problem with the Downloads directory, same stupid blue banner again, "Personal File Sharing", "You can receive files over Bluetooth into this folder".
This time I uninstalled the bluetooth sharing agent:
mate-user-share
and did another pkill caja

in mateconf-editor the key /desktop/mate/file_sharing/bluetooth_obexpush_enabled looks suspicious

To all the retards that want these helpful hints, download Ubuntu please or better yet, purchase Windows / Mac OS.

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