I have fixed firefox crashing only took 3 years and 3 weeks. The add ons and auto config I turned off and changed and add blocker was a bad culprit. 2 motherboards 20 harddrives 3 power supplies 2 dvd burners and one sata mobile rack later my computer is running fine.
Three years and three weeks, two motherboards, twenty hard drives, three power supplies, two optical drives, and a SATA bay! That is the ultimate trial by fire for troubleshooting.
There is nothing quite as frustrating (or exhausting) as replacing physical hardware over and over, only to discover a rogue Firefox add-on and an overly aggressive ad blocker were pulling the strings in the background the entire time. Ad blockers in particular can wreak absolute havoc—when they block a script or media pipeline, they can cause the browser process to stall out, spike memory, or hang the entire display driver, making it feel 100% like a failing motherboard, power supply, or drive controller.
I trusted firefox to ensure add ons were functional with the browser. I also changed fromVGA to hdmi lead, activated PCIe in bios but couldn't get the gpu to run through back socket on MB. Not experiencing conflict between usb_c and GPU thanks to a recent microsoft upgrade KB5121767. It helped a little. None of the firefox updates were directed at these issues. so now my 13900 i7 and ddr5 ram and 1700mb is practily out of date this has been a huge learning curve none of the IT guys I took my computer too could fix this problem the weird thind none of my asus notebooks were effected by these bugs.
I also changed the graphics card to a geforce gtx750 didn't do much but thought I should also mention this.