Navigate to the warning by clicking on the Java icon in the taskbar and select Don't Block.On Macintosh computers, the Security Warning dialog sometimes flashes and is placed beneath the web browser.
On Windows computers, the Security Warning dialog sometimes flashes and is placed beneath the web browser.
This may lead you to think that the web page has frozen.
It has not; it is waiting for the applets to be unblocked.
Chrome on Desktop Chrome on Mobile Safari on Mobile Safari on Desktop Firefox Internet Explorer 9, 10, and 11Internet Explorer 8Internet Explorer 8: New Toolbar Internet Explorer 7Opera Konqueror Community Q&A Cookies contain information that websites have gathered about you and stored on your computer as small text files.
Most of these files are completely harmless, but others store private details like where you went, what you did, and any personal information you gave.
Websites may also allow other sites (their advertisers, for example) to store third-party cookies on your computer.To ensure that companies are not keeping tabs on what you do online, use one of the following methods to clear your browser’s cookies.NOTE: As of April 2015 Google Chrome has disabled plugin support necessary to run Java applets, such as Physlets.Other browsers (Firefox, Safari, and Internet Explorer) still support Java applets.Oracle has changed the level of Java Security in the Java Control Panel necessary for running Physlets.The level of security in the Java Control Panel now needs to be at High.