Great extension！But the three buttons: Undo, redo, and copy to clipboard, it seems to have no effect?

multifunction (y)

It's good, though not *quite* what I'm looking for. I'd like to have something like the no-longer-supported "Leet Key", ideally, which allowed me to select text on a page and have it "decrypted" in place, without affecting the surrounding text. My main interest is ROT13, mind you, which may be simpler to handle in this kind of way.

Having Cryptext pull the selected text into its edit window, as suggested by another reviewer, would definitely be a good feature.

Another possibly-useful "encryption" mode would be disemvoweling (https://en.wikipedia.org/wiki/Disemvoweling).

Needs some QoL updates.

Please add an option to turn off the context menu item.