Tor Browser 7.x for Mac crashes at startup

Running OS X El Capitan (10.11.6) on a MacBook Pro (17 inch, Mid 2009) Tor Browser up to 6.x was running fine.

Tor Browser 7.x for Mac always crashes at start. I tried the stable and experimental versions. No luck. Error message: Tor Browser quit unexpectedly.

I can run Firefox ESR 52.4.1 (64 bit) without problems on my Mac.

Trac:
Username: wga

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