Porteus

I want to be able to download a file with Chrome like Firefox, The only option I have is to open the .xzm before you were able to doble-click on a module and it would install, not anymore. Any hints

I want to be able to download a file with Chrome like Firefox
Not sure what you mean here. What is the problem?

you were able to doble-click on a module and it would install, not anymore. Any hints
This sounds like a mimetype issue. Please give the output from the following console command:

find /home/guest -type f -name "*mime*"|xargs cat

Sorry. At work on windows and can't remember the exact file name. It could be:
cat ~/.local/share/applications/mimeapps.list

Also the output of: file --mime-type /path/to/any/module.xzm

When you are in Firefox and lets say you want to install a module from your site when you click on the file, the pup-up box asks you if you want to open it with an application or save it. That I can't do in Chrome.