Product Firefox Release Channel release Version 86.0.1 Build ID 20210310152336 (2021-03-10) Buildhub data OS OS X 10.12 OS Version 10.12.6 16G2136

bp-3965047e-e44c-430c-9324-bcc910210324 Signature: zlib_decode_buffer

Uptime 13 seconds

Crash Reason EXC_BAD_ACCESS / KERN_PROTECTION_FAILURE

Start Firefox in Safe Mode {web link}

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?