My country and provider don’t block major websites but Google, Yahoo, Facebook and others are blocked on my Firefox. They aren’t blocked on my Chrome.
I already tried antiviruses (Avast and ESET NOD) and anti-spyware (MalwareBytes) — what now?
I don’t want to use proxies, I want to solve the problem itself on Firefox and Internet Explorer.
You have to check proxy settings in firefox browser, and revise installed firefox addons and their settings.
Ensure that you are not using a proxy in your system settings and in Firefox’s settings. Your LAN settings window should have “Use a proxy server for your LAN” unchecked. In Firefox, you should have “No proxy” selected in its connection settings.