[solved] firefox coredumping again

after updating some ODROID-C2s this morning, bringing in firefox 75.0-2
we're unable to run it, getting:
$this->bbcode_second_pass_quote('', '
') PID: 989 (firefox)
UID: 1001 (richard)
GID: 100 (users)
Signal: 11 (SEGV)
Timestamp: Wed 2020-04-29 09:23:04 CEST (1h 11min ago)
Command Line: /usr/lib/firefox/firefox
Executable: /usr/lib/firefox/firefox
Control Group: /user.slice/user-1001.slice/session-2.scope
Unit: session-2.scope
Slice: user-1001.slice
Session: 2
Owner UID: 1001 (richard)
Boot ID: 88435fbdf5894cee9099666a80e1648d
Machine ID: a3cf6c7e75e14060a929d42784885d41
Hostname: odroid-001e06336dd6
Storage: /var/lib/systemd/coredump/core.firefox.1001.88435fbdf5894cee9099666a80e1648d.989.1588144984000000000000.lz4
Message: Process 989 (firefox) of user 1001 dumped core.

Stack trace of thread 1018:
#0 0x0000ffff97ebcdc0 raise (libpthread.so.0 + 0x13dc0)
#1 0x0000ffff9227c134 n/a (libxul.so + 0x36bf134)
#2 0x0000ffff929a78d0 n/a (libxul.so + 0x3dea8d0)
#3 0x0000ffff97f3e56c n/a (linux-vdso.so.1 + 0x56c)
#4 0x0000ffff97f3e56c n/a (linux-vdso.so.1 + 0x56c)
#5 0x0000ffff9282e890 n/a (libxul.so + 0x3c71890)

Stack trace of thread 989:
#0 0x0000ffff97bc5a14 __poll (libc.so.6 + 0xc7a14)
#1 0x0000ffff91690308 n/a (libxul.so + 0x2ad3308)
#2 0x0000ffff963faa40 n/a (libglib-2.0.so.0 + 0x5da40)
#3 0x0000ffff963fabcc g_main_context_iteration (libglib-2.0.so.0 + 0x5dbcc)
#4 0x0000ffff916904dc n/a (libxul.so + 0x2ad34dc)
#5 0x0000ffff916462fc n/a (libxul.so + 0x2a892fc)
#6 0x0000ffff916463e4 n/a (libxul.so + 0x2a893e4)
#7 0x0000ffff8f4c283c n/a (libxul.so + 0x90583c)
#8 0x0000ffff8f4c58c8 n/a (libxul.so + 0x9088c8)
#9 0x0000ffff8f4c55b0 n/a (libxul.so + 0x9085b0)
#10 0x0000ffff8f4d55f4 n/a (libxul.so + 0x9185f4)
#11 0x0000ffff8fc8d71c n/a (libxul.so + 0x10d071c)
#12 0x0000ffff8fc8eaf4 n/a (libxul.so + 0x10d1af4)
#13 0x0000ffff92309968 n/a (libxul.so + 0x374c968)
#14 0x0000ffff923040dc n/a (libxul.so + 0x37470dc)
#15 0x0000ffff922fc13c n/a (libxul.so + 0x373f13c)
#16 0x0000ffff92309c2c n/a (libxul.so + 0x374cc2c)
#17 0x0000ffff9230a108 n/a (libxul.so + 0x374d108)
#18 0x0000ffff924526b0 n/a (libxul.so + 0x38956b0)
#19 0x0000ffff92309968 n/a (libxul.so + 0x374c968)
#20 0x0000ffff923040dc n/a (libxul.so + 0x37470dc)
#21 0x0000ffff922fc13c n/a (libxul.so + 0x373f13c)
#22 0x0000ffff92309c2c n/a (libxul.so + 0x374cc2c)
#23 0x0000ffff9230a108 n/a (libxul.so + 0x374d108)
#24 0x0000ffff92368ed0 n/a (libxul.so + 0x37abed0)
#25 0x0000ffff8fc894a0 n/a (libxul.so + 0x10cc4a0)
#26 0x0000ffff8f4d5504 n/a (libxul.so + 0x918504)
#27 0x0000ffff8f4d5644 n/a (libxul.so + 0x918644)
#28 0x0000ffff92293ac8 n/a (libxul.so + 0x36d6ac8)
#29 0x0000ffff9228c764 n/a (libxul.so + 0x36cf764)
#30 0x0000ffff9228d240 n/a (libxul.so + 0x36d0240)
#31 0x0000ffff9228d584 n/a (libxul.so + 0x36d0584)
#32 0x0000aaaae8f65448 _start (firefox + 0xf448)
#33 0x0000ffff97b21d90 __libc_start_main (libc.so.6 + 0x23d90)
#34 0x0000aaaae8f64ec4 _start (firefox + 0xeec4)
#35 0x0000aaaae8f64ec4 _start (firefox + 0xeec4)

[risto3]

just checked --safe-mode... it appears perhaps to be the French language pack borking things

[risto3]

Seems to be fixed in todays upgrade to:
$this->bbcode_second_pass_quote('', 'f')irefox 76.0-2
firefox-i18n-fr 76.0-1