1806732 - contextualidentity tab indicator is hidden when screensharing

Status: NEW

(Core :: Security, defect)

Description

[mihugo]

Attachment: Examples of what it looks like both with and without screen sharing enabled.

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0

Steps to reproduce:

Logging this at suggestion from comments from issue: 1360089760.

When using multi-account containers in Firefox in full screen mode, the thin line that shows the color gets hidden when doing a screen share as several screen share programs display a thin line around the outer edge of the screen.

The attached photos show an example. One with screen sharing off and one with it on.

Reproduce steps:

1. open Firefox to full screen mode
2. open a multi-Account container in a new tab
3. observe thin color line is drawn at the top of the tab.
4. start screen sharing using entire screen using teams screen sharing
5. Teams will draw thin red line around entire screen and hide the thin color of the multi-account container.

Actual results:

It is not possible to see what color the multi-account container is when screen sharing.

Expected results:

ideally the multi-account container tab color should be placed lower in the tab so it does not get hidden.
This is purely a usability issue and perhaps one could even argue that this is not even a Firefox issue. For the most part it easy to live with but one does just have to remember which container is which when screen sharing.

Comment 1

[Alex C]

Attachment: Sample of ContextualIdentity Tab Indicator At Bottom

Comment 2

[Alex C]

Comment on attachment 9309325 [details]
Sample of ContextualIdentity Tab Indicator At Bottom

It would be really great to make contextualidentity tab indicator location configurable. It could have two options - top and bottom. Maybe even bottom would become default. At the bottom this is more detectable by user and correspondingly provides better UX. For example, I have used userChrome.css modifications and it looks much more convenient as on the attached image.

Comment 3

[Alin Ilea, Desktop QA]

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0

Hi,

I am able to reproduce the issue in release 108, beta 109.0b7 and the latest nightly 110.0a1 (2023-01-03) on Windows 10. Also, I can reproduce it in 102.6.0esr.

Thanks for your input.