Google meet window share fails in f38 firefox


do people get to share windows in google meet after upgrade? It works in chrome, but not in firefox for me. Earlier it has worked for long time. I use gnome.

The symptom is such that when I press share screen, and get the two dialogs, one to allow sharing using operating system settings, and the one to select the window. Normally this process was done twice for some bad usability, but it worked. Now the second round for selecting the window won’t show up, and focus goes back to gmeet. The sharing button remains pressed, so there is no way to restart the process. Somehow the process ends up faiiling.

Has anyone found a trick around the problem?