Open the Microsoft Edge application on your Mac, and select Microsoft Edge in the top-left corner of the browser window to show the dropdown menu:

Then select Clear Browsing Data…:

In the Clear browsing data popup, set the Time range to All Time:

Ensure the Cookies and other site data, and Cached images and files options are checked:

Then select the Clear Now button at the bottom right of the popup window:

Open the Mozilla Firefox application on your Mac, and select Firefox in the top-left corner of the browser window to show the dropdown menu:

Then select Settings…:

In Settings, using the pane on the left, select Privacy & Security:

Under Cookies and Site Data, select the Clear Data… button:

In the Clear Data popup window, ensure the Cookies and Site Data, and Cached Web Content options are checked:

Then select the Clear button at the bottom-right of the window:

When prompted for confirmation, select the Clear Now button:

Open the Google Chrome application on your Mac, and select Chrome in the top-left corner of the browser window to show the dropdown menu:

Then select Clear Browsing Data…:

In the Clear browsing data window, set the Time range to All time:

Ensure the Cookies and other site data, and Cached images and files are checked:

Then select the Clear data button at the bottom right of the window:

Select Safari in the top-left corner of the browser window to show the dropdown menu:

Then select Settings…:

Using the selections across the top of the Settings menu, select Privacy:

Under Privacy, select the Manage Website Data button:

Then select Remove All located at the bottom of the popup window:

When prompted for a confirmation to remove all stored data, select Remove Now: