Error - Crash - no logging

hi,

i got this error and crash tonight. it gave me no chance to do the whole auto-report. all i got was FF disappeared suddenly and this error came up. i took a screenshot.

i dont really know what caused this. i had been running FF for quite a while, scrolling through a lot of filters and testing a few here and there as i went through them. i had started at the bottom of my alphabetical list in 'my filters' and was working my way up. i think somewhere around the 'S'es it crashed. i think i was testing a zooming type filter and i had an imported image loaded in. other than that, i dont really know anything else significant.