Bug 507991

Summary:	Plugin breaks Microsoft Teams screen share
Product:	[Plasma] plasma-browser-integration	Reporter:	julian.mayr
Component:	Firefox	Assignee:	Kai Uwe Broulik <kde>
Status:	CONFIRMED ---
Severity:	normal	CC:	freggel.doe, martin, stefan
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	EndeavourOS
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description julian.mayr 2025-08-07 18:19:18 UTC

SUMMARY
Having the Plugin installed on either firefox and chromium makes it impossible to share your screen oh the Microsoft Teams website

STEPS TO REPRODUCE
1. Install the Plugin
2. Restart the Browser
3. Log into Microsoft Teams (teams.microsoft.com) and start a new meeting
4. Share Screen and select any Screen, Window or Tab

OBSERVED RESULT
The screen isn't shared and a message appears saying "Your video isn't working. We couldn't access your camera." If the camera was turned on while trying to share the screen, it is turned off.

EXPECTED RESULT


SOFTWARE/OS VERSIONS
Operating System: EndeavourOS 
KDE Plasma Version: 6.4.3
KDE Frameworks Version: 6.16.0
Qt Version: 6.9.1

ADDITIONAL INFORMATION
Using X11. Problem also reported here: https://bbs.archlinux.org/viewtopic.php?id=305299

Comment 1 Stefan Bohlein 2025-08-08 09:30:53 UTC

This issue is not limited to Firefox. I'm running "official" Chrome on Arch Linux, and the Plasma Integration extension breaks Teams screen sharing on Chrome, too.
The error message is the same as reported in the initial bug report.
Disabling the extension makes screen sharing functional again.

Comment 2 Martin Insulander 2025-08-22 11:15:26 UTC

Same for me. Turning off the extension, reloading the page and it works.
I think it broke for me sometime during this sprint, and I'm pretty sure I had the extension installed before. 

* Debian testing
* Firefox 141.3
* Kde Plasma 6.3.6

Comment 3 freggel.doe 2025-09-22 10:57:10 UTC

I was just hit by this using Firefox 143.0 and it did take me a while to get plasma integration addon being the culprit.
As the previous poster mentioned, this did work not that long ago.
Sharing does seem work when "Enhanced Media Controls" is disabled.


Operating System: Manjaro Linux 
KDE Plasma Version: 6.4.5
KDE Frameworks Version: 6.18.0
Qt Version: 6.9.2
Kernel Version: 6.12.48-1-MANJARO (64-bit)
Graphics Platform: Wayland

Comment 4 freggel.doe 2025-09-22 11:08:51 UTC

After a browser restart disabling "Enhanced Media Controls" was not enough to make sharing work again.
Disabling "Media Controls" altogether keept sharing working across browser restarts.