[Libreoffice] How to disable addon installation

[Manuel Reimer]

Hello,

in my opinion LibreOffice has a potential security hole.

As it's possible to install an addon by just passing it to the soffice 
executable, anything, a bad guy has to do, is to deliver a oxt file with the 
content type "application/vnd.oasis.opendocument.text". If this is linked to 
LibreOffice in Firefox, then it will be passed to it and anything, that stops 
this addon to do its bad job is one click on "OK".

In my opinion this shouldn't be possible at all. The only working way to install 
an addon should be via addon manager. It shouldn't be possible to just open a 
OXT file. Would it be a good idea to file this as bug? For the meantime I need a 
way to disable addon installation at all. How is this possible?

Thanks in advance

Yours

Manuel