Same problem as bug 633232 with a different function.
Easy test: execute this in the Error Console for an crash:
3.6.13 on Windows: bp-7b7bd39c-4a4d-4964-85e7-3914f2110210
3.6.13 on Linux: bp-777ec39c-3ac5-414f-b4df-4f3832110210
4.0b12pre on Linux: bp-c35974d7-650e-4f32-996f-f1d592110210
Looks like it just needs a null check for aFile up top.
Not a candidate for blocking, as far as I can tell. It's been this way since at least Firefox 3.0 and I don't see a way to get at this from the web, though if anyone else does please say so. Requesting wanted+ for all affected branches.
Created attachment 515546 [details] [diff] [review]
These two crash bugs (bug 633232 & bug 633240) have reviewed one-line patches. Any reason they can't land now? They should at least be able to land on Trunk at this point, I would think. Could they also make Firefox 4.0.1 too?