Companion hangs/breaks at 20% with the current Firefox version - 115.4.0 - General Discussion - MIT App Inventor Community

Can someone who is using the current Firefox version (115.4.0) please advise if there are any (connection) problems with Companion (as long as not Legacy is used)? Companion has stopped working for me with Firefox for the first time in over 10 years. (Chrome works.)

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