I've had NoSquint installed for some time and it's updated to version 2.1.9.1. It's been a real blessing for viewing.

However, with the past couple versions of Firefox (now version 41.0), even though I've entered exceptions for Gmail and several other sites (in NoSquint) and even though I've set NoSquint history to be retained at all times, under custom Privacy settings in Firefox it is impossible to uncheck the box for deleting NoSquint history; by that I mean I uncheck it, close the window, reopen it and find that it's still checked.

Any suggestions as to how to foil this malfunction would be gratefully received.