Crappy would be a generous description of this useless extension

LAME.
TOO BAD NO STARS IS NOT AN OPTION.
NUMBERS FUZZY, SOME OPERATIONS OBSCURE, NO CALCULATOR "LOOK AND FEEL."
IT MAY DO WHAT IT SAYS, IF ONE READS THE FINE PRINT AND LEARNS THE KEYBOARD OPERATORS.
I'D PREFER WORKING THROUGH A "CALCULATOR" GUI, AND, WELL, REALLY, ONLY AN HP VOYAGER SERIES DOES IT FOR ME. I'M DUMPING THIS. AND I MAY DUMP THE FIREFOX UPDATE FOR AN OLDER VERSION TO GET THE HP11C-ish ADD-ON FUNCTIONALITY BACK. HI HI. JS.