Hello tomaeverec, Your system details show that you are running a very, very old Firefox version ..... Your system details also show that you have (among other plugins) the Java plugin installed. If you really need to use Java and other plugins, you could download Firefox 52.9.0esr (which will get no more security updates) and choose your locale : http://archive.mozilla.org/pub/firefox/releases/52.9.0esr/win32/ Note that you need 32-bit as Win64 only allows the Flash Player and Silverlight Plugins to run. Also see : https://support.mozilla.org/en-US/kb/npapi-plugins However, if it is at all possible to do without plugins : running the latest Firefox version (63.0.1) would be best (but I will spare you the lecture .... ).