After rewriting a business system from scratch as a web application, and switching all users over to FireFox, the one problem I wound up with is that a lot of users would never, ever close any windows. By the end of the day, some users would have 20 or 30 browser windows open and wonder why their computer was running slow. They also got very confused trying to naviate through all those windows. So I wrote this extension that lets you specify the maximum number of windows (or tabs) that can be open at any time (The default value is 10).
This is a rewrite of the extension to add lots of new features. There is no a preference dialog that let's you do lots of new cool things
a) There is now password protection. By setting a password, users will be unable to alter the number of windows and tabs they are limited to opening
b) There are now 3 modes of operation for the extension
"Suggest" - If the user exceeds the maximium amount of opened windows and tabs, they will be presented with a list of window and tabs and they can either choose to close one or more of them, or they can ignore the warning and continue working
"Force" - The same as above, but the user is required to close at least one window
"Silent" - This is like the old version. It automatically closes windows and/or tabs as the maximum allowed limit is reached.