Please Make it so the NAME of the Extension when it is installed matches the NAME here in addons.mozilla.org! It's "PinPerm" here but "Tab Pin Manager" when you install it. Please add Backup/Restore and SYNC.

Oh my God yes! The most annoying thing about Firefox is closing the windows in the wrong order and losing your pinned tabs. A totally ridiculous way of using them. This solves the problem instantly. How can I send you some money?

Easy to use and works! Should be how pinned tabs work in Firefox. I pin a tab and it stays pinned, even on start up and in new windows!