Originally Posted by ray_80
strace mozilla-firefox (or whatever the binary is)
Watch the output from the shell as Firefox crashes. It should tell you what you need to know.
I tried to run "strace firefox" as my regular user: this came up
bash-3.00$ strace firefox
ERROR: unable to open /dev/log
I went en vi the log, and it was empty.
Then I went to su:
# strace firefox
ERROR: tracer already exists