Sooo many thanks for TW, and soo many thanks for this extension!!!
In case improvement wishes are welcome, here are my ones:
(1) the warning message should be configurable; though I really appreciate it, may be it could come a) upon first saving the file, b) only once (ever!) for a single URL or c) like now; since different users have different oppinions this should be made configurable (preferrably using a neat little "settings" window, but I'd also take about:config; background: I'm using TW to create a Firefox startup page, which should not display a warning each time the browser comes up... my only option now would be a local HTTP server, which micht be a little overdone
(2) I would really love to have such an extension for chrome, too, but maybe that's another story...