I'm sorry you feel this way, it saving .html files isn't a bug however though:

Recently there's been an issue with Firefox no longer allowing url/desktop files to be saved (see https://bugzilla.mozilla.org/show_bug.cgi?id=1827115)

In an attempt to remedy this (so that QuickCut isn't entirely useless) I made a change that made it so that when saving fails because of this issue it falls back to .html.

I understand the confusion and why it might seem like it doesn't properly create the shortcuts in the format it should be saving, but I don't really have any alternative until this issue gets resolved (other than just letting it stop working)


When it does get resolved, files will be saved again in the right format.