Q: mon safari ne fonctionne plus, il reste bloqué ?

Genieo Adware is installed.  Removing it will help.

If you have another browser:

     Use  free  AdwareMedic by clicking “Download ” from here

     http://www.adwaremedic.com/index.php

     Install , open,  and run it by clicking “Scan for Adware” button   to remove adware.

     Once done, quit AdwareMedic by clicking AdwareMedic in the menu bar and selecting

    “Quit AdwareMedic”.

               or

If you don’t have another browser:

     Use another Mac or an iPad.

     Open the article,either print it or  email the  contents to yourself.

     Remove adware  manually  by following the “HowTo” from Apple. 

    “Remove Genieo, also known as InstallMac”

    http://support.apple.com/en-us/HT203987

      Safari > Preferences > Extensions

    Turn those off and relaunch Safari to test.

    Turn those on one by one and test.