Empty browser's clipboard on browser shutdown

Implementation issue for #42013 (closed).

added 13.0 stable Linkability FF115-esr labels

assigned to @ma1

marked this issue as related to #42013 (closed)

added All Platforms label

added Doing label

changed title from Empty browser's clipboard on shutdown to Empty browser's clipboard on browser shutdown

mentioned in merge request !732 (merged)

marked this issue as related to tor-browser-build#40914 (closed)

marked this issue as related to tor-browser-build#40915 (closed)

closed

removed Doing label

marked this issue as related to tor-browser-build#40965 (closed)

marked this issue as related to tor-browser-build#40966 (closed)

mentioned in issue #42154 (closed)

changed the description

mentioned in merge request !862 (merged)

Recently I've been wondering about the reasons to have this patch in our browsers, in addition to being a response to the upstream changes (i.e., to reason about it in terms of threat model).

Here are a couple of scenarios protected by this patch:

1. shared computer. Use case: I'm using TBB on a shared computer, and another person needs to use that computer. When I close TBB, I want to be sure the other person won't have my data in the clipboard.
2. not multi-tasker users, i.e., users that don't do anything else when using Tor Browser, and they just care of everything disappearing when they close it.

mentioned in issue mullvad-browser#360 (closed)