I played for a bit today then this happened
Refreshed and now every time I log in (after assets load) it crashes to this.
When it first did this I was firing and reloading a 9mm pistol from a built structure then jumped down. Time was around 21:30 CET. In-game name is Vexin.
[editline]16th June 2013[/editline]
Reloaded Firefox and now it no longer crashes.