Hello:

I've been working with my site Interactive Mathematics Miscellany and Puzzles (http://www.cut-the-knot.org) from 1996. With time, I wrote a few hundreds Java applets that illustrated math problems or math related puzzles. It was a very popular site, it is still is, but the applets no longer run (due to security concerns) in browsers, other than Firefox, and that after due confirmation via a warning dialog. This is certainly a sad situation as there is a lot students and math buffs may learn and enjoy. I seek an advice as to how to return the interactivity to the site. I converted several applets to apps but this does not seem right. Making them secure or rewriting them in JavaScript would jibe better with my original ideas and the site's configuration. But starting everything from a scratch, working with an applet at a time, seems like an enormous task - undoing what have been done over two decades. Thus I seek an advice of what can be done.

Thank you,

Alexander Bogomolny