1) Start up Firefox
2) In the URL area, type about:config
3) In the search area type tls
4) Change security.tls.version.min from "1" (default) to "0."
5) Change security.tls.version.fallback-
For Chrome
1) Start Chrome
2) In the URL area type: chrome://flags
3) Find the "Minimum SSL/TLS version supported" flag and change the value to SSLv3.