Frankly you shouldn’t ever look at porn on a work machine, no matter how much they encourage you to think of it as your personal machine. It is only a liability.
You've got to use an entirely separate browser for that IMO. Even with Chrome's totally segregated user profiles, it's too easy to pull up a NSFW URL in the wrong Chrome window and have it pollute your "work" profile.
I use FF for work and a special Chrome profile (not the default one) for anything that shouldn't pop up in my autocomplete in front of coworkers/clients.
That way it's pretty hard to screw up...
That's a feature!
I have observed dozens of time coworkers using their BYOD work laptpos that autocompleted porn URL. Dozens.