Update 2018-10-10 Since people still seem to look at this post regularly, consider switching to the R package flan for fluctuation tests. There’s even a FALCOR-style web app through Shiny (interactive websites powered by R), ShinyFlan.
FALCOR (Fluctuation AnaLysis CalculatOR) is a handy Java applet designed to estimate mutation rates from fluctuation test data. A Java update prevents access to the clipboard to unsigned Java applets. If you are having trouble copy/pasting your data into FALCOR, try modifying your java.policy file to include the line: permission java.awt.AWTPermission “accessClipboard” under where it says //”standard” properties that can be read by anyone.
// "standard" properties that can be read by anyone permission java.awt.AWTPermission "accessClipboard"
Save the file, exit and restart Java (or any programs using it, like Firefox or LibreOffice), and copy/paste should work again. You may wish to consider removing the clipboard access after using FALCOR for security reasons.