A new tab will open and should look something like the following image:
In the top left corner, type the word "clear" in the search box, your window will now look like this:
Click Choose What to Clear towards the bottom:
You will now see a small window to clear your cookies and web data.
Things to note here:
* Click on the Advanced tab
* Make sure the Time Range dropdown is set to "All Time"
* Make sure to check all the boxes EXCEPT THE PASSWORDS BOX

Clearing the cookies/data with the passwords box checked will delete all your saved logins!
* After you have clicked the Clear button, it may take a few minutes to clear the data, depending on the amount of data that was present.