1455121 - Prevent updates from themes to webextensions

Status: RESOLVED DUPLICATE of bug 1750565

(Toolkit :: Add-ons Manager, enhancement, P3)

Description

[Andrew Swan [:aswan]]

I haven't verified this but from inspection it looks like a theme can be updated to a webextension.  We would still show a permission prompt if the extension has any promptable permissions but this is probably something we just shouldn't allow at all.

Comment 1

[Rob Wu [:robwu]]

I fixed this in bug 1750565, by disallowing add-on type changes on update.

Note that there was a unit test that tests the reverse, the "update theme to extension" scenario, which I removed in bug 1903794 because it is no longer possible to encounter that scenario in practice.