This is an adaptation of the original version making it suitable to work with web-extensions and e10s.
Homepage is now on github pages: Form History Control
The blog is still maintained: https://formhistory.blogspot.com/
stephanmahieu/formhistorycontrol-2
A browser Add-On to View and Manage form history entries (adaptation of v1 for web-extension and e10s)
JavaScriptMIT