1491984 - Allow setting a different mailto handler for each container

Status: NEW

(Core :: DOM: Security, enhancement, P5)

Description

[Botond Ballo [:botond]]

Suppose I am using Firefox Containers to manager two identities, and I have a different e-mail account for each. Suppose one is a Gmail account, and the other is an Outlook account.

It would be useful to be able to specify a different 'mailto' handler for each container, so that I can set my 'mailto' handler to Gmail in one, and to Outlook in the other.

Comment 1

[:Gijs (he/him)]

This seems pretty tricky to implement given the current content/protocol handler implementation, plus UI ends up being a bit tricky... P5 because I don't see this being a priority very soon...

Comment 2

[Mike Conley (:mconley) (:⚙️)]

Actually, Gijs and I talked about this, and we're going to move this over to Core :: DOM: Security, since ContextualIdentityService would need to be updated to even support this case.

Comment 3

[Mike Conley (:mconley) (:⚙️)]

(or the handler service - I'm not 100% sure how this would work under the hood, but we'd need to update the mailto: handler to map userContextIds from principals to some list of email addresses... and I'm not sure if ContextualIdentityService needs to hold onto that. Best to let Core :: DOM: Security decide).