There was a bug with the SSL3 protocol used on servers and browsers. Because of that you encountered issues while browsing various websites. The bug has been updated since its release and now the problems have gone. I do, however, recommend updating all the browsers in your computer to the latest version.
- Firefox: Firefox > Help > About Firefox
- Chrome: Settings (3 bars) > Settings > About > Check for update.
- Internet Explorer: Updates available through Windows Update.