Option to disable screenshots in private mode

[vesta0]

User Story

• As a user, I want the option to disable taking screenshots in private browsing mode, so I can further protect my privacy.

Acceptance Criteria

• I can disable taking screenshots in private mode (off by default)
• When disabled in private mode, I am not able to take a screenshot and instead I see a system notification indicating that taking screenshots isn't allowed in private mode.
• I don't see the contents of my private tab in Android multitasking view

┆Issue is synchronized with this Jira Task

[topotropic]

We should use a system notification, similar to what Focus does.

[vesta0]

Sounds good @topotropic

[buttercookie42]

Should this be configurable - not least for bug reports and suchlike?

[joebloggs7657]

Could this not be an option? Being able to take screenshots in private mode doesnt exactly compromise the premise of private browsing. I will say from experience in Bromite that not being able to screenshot is more of a hassle than anything related to private browsing.

[yoasif]

This should be an option - perhaps even default behavior, but an option nonetheless, imo.

[ekager]

If we do this, I think we should make it off by default. From Focus experience, not all users understand or want this feature, and the ones that want it are probably more likely to understand how to seek it out.

[lime124]

removing the ux label - this is on our radar already as it's part of Q3 plans.

[Djfe]

this is the same bug as
#2248
#3422
#3707

I think 3 of the 4 bugs should be closed as duplicates :)

[sv-sdeiac]

Hi, I can confirm that the new feature is implemented using the latest version of Firefox Preview Nightly 4/8 #20990609.
Also, I can confirm that the issue works properly. Disabling the option is blocking the device to take screenshots and it blanks the videos. Enabling the option allows the device to take screenshots and videos.

Devices:

• LG g7 fit (Android 8.1);
• Samsung Galaxy Note 8 (Android 9);
• Google Pixel 3 (Android 10).

[Poopooracoocoo]

@brampitoyo said:

One thing we have to keep in mind is the “unintended consequence” that turning this option on will also cause Fenix private mode not to show a screenshot in the app manager view – effectively hiding potentially incriminating content. It’s a nice privacy feature, and one that we ought to include when explaining this feature.

a subtext could be added to explain this. @BMEduard whaddya think?

[BMEduard]

I think this is a question for UX, @AmyYLee what do you think?

[AmyYLee]

I think this is a question for UX, @AmyYLee what do you think?

Do you mean subtext in the private browsing home screen when the user has no tabs opened? Asking @betsymi for her input.

[Poopooracoocoo]

@AmyYLee no a subtext of the disable screenshot option that tells users that Fenix's content will be hidden in the app switcher

[AmyYLee]

@AmyYLee no a subtext of the disable screenshot option that tells users that Fenix's content will be hidden in the app switcher

@Poopooracoocoo Can you post the screen of what you are referring to?

[Poopooracoocoo]

@AmyYLee

The "Allow screenshots in private browsing" option should also include a description that tells users that it also hides Firefox's content in the app switcher.

[Mugurell]

Closing as per #2768 (comment)