I'm running Linux Mint 19 on an Acer Travelmate, so definitely not a high-end device. Since switching to LM19, I don't detect any problems whatsoever, except for this one: Starting Firefox is impossible. The firefox windows does not even appear. All I notice is that RAM goes to 100% and that the system freezes completely. I might be able to move the mouse pointer though and it will respond with considerable delay. This behavior started less than a year ago with a new firefox version. Using an older version (I think 52) works without problems. Starting from the terminal also does not reveal anything. The only thing I can do is REISUB. I'm rather clueless at the moment what to do about it.