This wikiHow teaches you how to clear the cache of temporary system files that your Mac stores as you use it, as well as how to clear the Safari browser's cache of temporary Internet files. Keep in mind that clearing the system cache can cause your Mac to freeze or crash unexpectedly; this is a normal response to clearing the cache. It will not delete cookies with HttpOnly flag set, as the HttpOnly flag disables Javascript's access to the cookie. It will not delete cookies that have been set with a Path value. (This is despite the fact that those cookies will appear in document.cookie, but you can't delete it without specifying the same Path value with which it was set.). How to Remove Cookies in Google Chrome on Mac. Now, let's see the way to fix how to clear cookies on Mac from Chrome page manually: Step 1 Launch Google Chrome browser. Step 2 On the top left corner, click Chrome Clear browsing data. Step 3 Check Delete Cookies and other site data and set the time range. Step 4 Click Clear browsing data to. In the screenshot below, you can see that Mac Washing Machine can save more than 2 GB on my Mac, just by deleting unneeded caches. Next, if you go to the Library folder in your home folder (that’s the folder with the house icon and your user name), you’ll see lots of surprises. Also, as has been pointed out, Safari keeps an internal copy of cookies which it periodically syncs back out to the Cookies.plist in your library. One side affect of this is that if you delete the Cookies.plist while Safari is open, when Safari next syncs it internal copy back to the cookie file, cookies you thought were deleted reappear.
Safari User Guide
You can change options in Safari preferences so that Safari always accepts or always blocks cookies and website data.
Can I Delete Cookies On My Mac%27s Library Card
In the Safari app on your Mac, choose Safari > Preferences, click Privacy, then do any of the following:
Prevent trackers from using cookies and website data to track you: Select “Prevent cross-site tracking.”
Cookies and website data are deleted unless you visit and interact with the trackers’ websites.
Always block cookies: Select “Block all cookies.”
Websites, third parties, and advertisers can’t store cookies and other data on your Mac. This may prevent some websites from working properly.
Always allow cookies: Deselect “Block all cookies.”
Websites, third parties, and advertisers can store cookies and other data on your Mac.
Remove stored cookies and data: Click Manage Website Data, select one or more websites, then click Remove or Remove All.
Removing the data may reduce tracking, but may also log you out of websites or change website behavior.
See which websites store cookies or data: Click Manage Website Data.
Note: Changing your cookie preferences or removing cookies and website data in Safari may change or remove them in other apps.