Setup: Firefox 43.0.1 (x86 hu) on Windows XP (32 bit). For a while FF crashed, even in Safe mode, even after Refresh Firefox. Also, the sending crash report won't send anything, so here I uploaded the last two files: https://www.dropbox.com/sh/ftdhza8m9d0y097/AACx4mU-JLIyEmhMgBb6ZP3Ga?dl=0 The system was infected with malware but it looks like Malwarebytes's Anti-Malware and SUPERAntiSpyware got rid of them. Also the caches were cleaned and I updated the video card drivers. Thanks for any heads up!