I experimented with FEBE alone added to a new profile with Firefox 56.0.2. Crashing occurs after simply opening the FEBE Options window, before any preference can be set.
Screen recording: https://photos.app.goo.gl/ZxftwLD71hLSt9Mu2
From https://pastebin.com/Rmz3fN71:
- Code: Select all
[grahamperrin@momh167-gjp4-hpelitebook8570p-freebsd] ~% firefox -p FEBE
mozilla::detail::MutexImpl::lock: pthread_mutex_lock failed: Resource deadlock avoided
Segmentation fault (core dumped)
[grahamperrin@momh167-gjp4-hpelitebook8570p-freebsd] ~%
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I'll experiment with Firefox ESR in a different machine, based on a more recent -CURRENT, with a different desktop environment …