So, I had an issue updating Firefox where it went into a loop... twice, and ended up re-downloading the Installer both times to force the update onto Firefox. Eventually, when it happened again a while after I restarted my computer, I managed to get it updated normally (after a tiny bit of prodding), without the need to re-download the Installer. But now, I have two additional copies of the Installer on my computer. What should I do? Should I delete the two extra Installer files, or should I not?