New comment by Johnnynator on void-packages repository

https://github.com/void-linux/void-packages/issues/18179#issuecomment-574389318

Comment:
> The issue here was a missing backtrace as not everybody was able to reproduce it and now Johnny found the issue meanwhile because I have no clue how to make a backtrace or use the mozilla debugger and had no time yet to get into it.

Smth like this can be done to get a backtrace, output will be in bt.log. The issue was quite obvious after looking at the backtrace for this, since it pointed to `MOZ_CRASH("SQLite Version Error");`, it would have been faster if someone had provided a backtrace before me.

```
# xbps-install -S void-repo-debug
# xbps-install -S firefox-dbg gdb
$ gdb firefox
(gdb) run
(gdb) set logging file bt.log
(gdb) set logging on
(gdb) bt full
(gdb) quit
```