An error occurred during a connection to www.google.com.
security library: invalid algorithm.
(Error code: sec_error_invalid_algorithm)
Probably http://wiki.centos.org/Manuals/ReleaseNotes/CentOS6.5#head-eb6bb9abad0158d05... (first issue on the list).
Maybe this will help, or the Fedora bug listed in above link:
http://dilfridge.blogspot.ie/2013/11/deactivating-rc4-cipher-in-firefox.html
Do it for both rc4 and md5.