i always used a firmware password on my macs. but a couple of years ago (el capitan, i think), i had some serious issues... and had to have apple remove it. ugh. still, an isolated instance.
otherwise, it happens when you boot up, and once you login, that's it. so no reason to expect a slowdown.
I was using it recently and my laptop seemed slow. I turned it off and went ahead with a clean install of OSX. I didn't turn it back on, just thinking it may have been the cause. The laptop is back to running like normal. It could have been another issue that was corrected in the clean install.
when i upgraded to el cap, everything went to hell; i often couldn't get the cursor to the password window (with firmware password enabled), and couldn't get in to recovery... to disable it. had to go to the apple store (with my purchase receipt), and left my macbook overnight... so they could do their 'magic' process (disabling firmware). and that was the end of 13, 14 years of firmware passwords on my macs...
The change to High Sierra and a firmware password are not the same thing at all and are not even really related. The most important thing a firmware password does is to prevent a user from taking your computer and starting it up from another disk to try to access your data, or to simply remove/reformat the disk from a stolen computer and use it freely. With computers that have nonremovable disks, like all the current Mac portables, if you're using Filevault, the use of a firmware password is a lot less important.With High Sierra, a low level form of firmware protection has been enabled.
See this MacRumors article for more info: https://www.macrumors.com/2017/09/25/macos-high-sierra-weekly-efi-security-check/ for details.
Setting a firmware password does not have an effect on a Mac's performance at all. There would have been something else causing that.so, I just turned it on and Safari is running slow. interesting
The change to High Sierra and a firmware password are not the same thing at all and are not even really related. The most important thing a firmware password does is to prevent a user from taking your computer and starting it up from another disk to try to access your data, or to simply remove/reformat the disk from a stolen computer and use it freely. With computers that have nonremovable disks, like all the current Mac portables, if you're using Filevault, the use of a firmware password is a lot less important.
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Setting a firmware password does not have an effect on a Mac's performance at all. There would have been something else causing that.
Most likely, just restarting would have solved that problem anyway.That’s what I was thinking but now that I have disabled the password the laptop is back to normal and opening things smoothly and quickly.
Most likely, just restarting would have solved that problem anyway.