for those of u that dont know how or r wondering y u can hack it, it's because instead of firefox.exe, u choose the plugin-container.exe process. so open up cheat engine and click pc thing, then open plugin-container.exe.
first scan the exact value of your current money.
then buy or sell anything.
scan the new value of your money.
keep repeating process until there is 1 value left.
double click to bring it down and change the value to however much money you want.
freeze it, then close and re-open your inventory and you should have the amount of money you changed it to.
Have fun and please REP if this works for you.