A great article for most major browsers can be found here.
On your computer, open Chrome.
At the top right, click More
Clear browsing data.
At the top, choose a time range. To delete everything, select All time.
Next to "Cookies and other site data" and "Cached images and files," check the boxes.
Click Clear data.
Under overview, click on Sign out everywhere
To clear the cache, you’ll need to navigate to the Clear Browsing Data option. To get there:
Open Microsoft Edge.
Click the Settings and More menu (the three ellipses).
Click Settings.
Underneath Clear Browsing Data, click Choose What to Clear.
Select the items below then click Clear.