I swear to god Im this close to loosing my shit... I asked this before for my Xubuntu machine, now Im on Arch Linunx and have the same f*ing problem again: When I shutdown my pc without closing anything properly, including firefox. I wish that would will start the next time without restoring anything automatically like any sane person could expect. Now it isnt doing that despite the very promissing configuration you can find below. Please, please, please someone ginve me a hint here Im loosing my patience and go back to chrome again. (Im also curious why the scrolling on Linux is complete shit since like 10 years and every f*ing time I install new I have to do the same tweaks again) In about:config I have set: browser.sessionstore.max_resumed_crashes 0 browser.sessionstore.resume_from_crash false browser.sessionstore.resuming_after_os_restart false browser.sessionstore.resume_session_once false In preferences I have disabled to restore session