...

1. Sign up for a Firefox account at Firefox Accounts signup page.
   1. Enter your email address, password and age, then click Create account.
   2. When the confirmation email arrives, click on the verification link.
2. Once your account has been verified, sign in to Firefox.
   1. Open Firefox and click the Open menu button at the top right.  
   2. Click "Sign in to Firefox."  
   3. Again, click "Sign in to Firefox." 
   4. Sign in to your Firefox account.

...

1. Open Firefox.
2. Click the menu button and select Options.

3. Select the Privacy & Security panel.

4. In the Cookies and Site Data section, click Clear Data….

5. Remove the check mark in front of Cookies and Site Data.

6. With Cached Web Content check marked, click the Clear button.

URL Copy and Paste

Microsoft Edge

A new feature in Microsoft Edge is to copy and paste a URL (web link) using the page's title instead of the URL itself.  For more information on how this works and if you want to turn it off, please see https://support.microsoft.com/en-us/microsoft-edge/improved-copy-and-paste-of-urls-in-microsoft-edge-d3bd3956-603a-0033-1fbc-9588a30645b4.