Screensharing issue trisquel & ABrowser


I have a screensharing issue with the icon missing. I’ve been using for months without any problem, it worked like a charm, cam, sound and screensharing. Thanks by the way for this powerfull too. My config was and is still Trisquel 8.0 and Abrowser. I tried another visionconf webbased app today (talk on nextcloud) and it worked on Trisquel 8.0 and Abrowser.

any help welcome.