So, been messing around with userscript lately, in tampermonkey. And hence had a few problems saving and loading with GM_setValue and GM_getValue. There are a couple of scrips out there to sort this for you, but none that i was able to get to work. So I’ve wrapped my own version up, which also compresses via LZstring. (google it).
d.save(“float”, 12.34);
d.load(“float”);