Problem with Studio and FireFox

I have a problem with Stud and Firefox. The study is a version 2020.6.0-beta 93 and Firefox 79 (last update).
After update firefox from 77 to 79 selectors do not work, neither repair nor indication. An extension has been installed.

I ask for an urgent solution


Take a look at this forum post.

Thanks [william.coulson]
Can I get an answer when a repair is expected?


Not sure when a fix will come. Check the forum post I linked above regularly or enable notifications for it, as there may be updates on there