My Safari keeps quitting when i try to open it

Question

I was using Safari 8.0.2 on my Macbook Air 2013 (OS X Yosemite) and suddenly, safari quitted and subsequently when I try and open Safari, a message just pops up and says "Safari quit unexpectedly". There's an option that says "Reopen" but when I click that the exact same thing just happens. For a week i couldn't use Safari and even now I still cannot access Safari. Can somebody please help me thanks

Answer 1

Genieo Adware is installed.  Removing it will help.
If you have another browser installed, use it.
If not, launch App store and get another  browser for temporary use.
Remove it afterwards.
1. 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
    Remove the adware  manually  by following the “HowTo” from Apple.
    http://support.apple.com/en-us/HT203987
2. Safari > Preferences > Extensions
     Turn those off and relaunch Safari to test .
     Turn those on one by one and test.
3. Safari > Preferences >  Search > Search Engine :
    Select your preferred   search engine.
4. Safari > Preferences > General > Homepage:
     Set your Homepage.