Thanks Eulalia. I tried the ‘show details’ but it just cancels out. I’ll try a different browser, I’ve been using Safari. Whats best for privacy?
I think the easiest way is to reserve a browser just for CruxForums. Don't use any other website, or, alternatively, visit only crux-related sites. If you need to use a search engine, for example Google, do not login into its services, or do so using an account dedicated to your crux activity. For these uses, I find using an alternative browser much easier than always navigating in a private window: I can keep sessions open, save passwords, etc. It's also less error-prone, and a bit safer from the point of view of account security, because you don't have to enter the same password again and again.
Mozilla Firefox and Firefox-based browsers (SeaMonkey, Pale Moon, Basilisk...) have a nifty feature called "user profiles". Basically, you can simulate a different browser without installing it. At startup, Firefox (and the others) can be instructed to ask you which profile to use, and each profile is like Firefox was installed in a different computer. To switch profiles, just close Firefox, reopen it, and select a new profile. Very useful to maintain different Internet "personas" without having to install several browsers.
Personally, I use SeaMonkey for my "non-public" (what an euphemism!) Internet activities, be it fetish browsing or shopping intimate clothing and gadgets. It is not as up to date as other browsers, but it receives regular security patches, and works with all the sites I need.
All this assumes that you have a private computer, or that your spouse/partner knows about your dark side. If you use a shared computer, I'd follow Eulalia's advise, through.
And, of course, it goes without saying that you must keep your system and browser up to date with security updates, and have an up-to-date antivirus (if you use Windows, the one built into the recent versions works nicely). Older OSes without security support (like Windows 7 or, ahem, Windows XP) is a no-no.
Edit: I've realized that there are two sides to "privacy". One is keeping Internet services from tracking you. The other, keeping your activities unknown to people using your same computer or living with you. My recommendations cover the first side. Eulalia's cover the second. They are not excluding -- you can apply one, the other, or both. It depends on what are your worries.