How to fix 400 Bad Request errors (and other 4xx errors)
When you get a "400 Bad Request" error in your browser (or similar error in the 400 series) while viewing some pages on our website, you may have some corrupted cookies stored on your computer. If you don't want to delete all cookies on your computer, which would wipe out all your "remember me" sites, you'll want to delete only the cookies associated with rplstoday.com. Here's how (in Chrome and Firefox): https://www.thewindowsclub.com/clear-cache-cookies-specific-website
The Firefox instructions provided at Wendell's link are apparently for an earlier version of Firefox.
Here are instructions from the Firefox support system -
Delete cookies for a single site
To delete cookies for one website:
- Click the menu button and choose .
- Select the
- Click the button. The Manage Cookies and Site Data dialog will appear.
- In the Search websites field, type the name of the site whose cookies you want to remove. Items that match your search will be displayed.
- To remove all cookies and storage data for the website, click .
- To remove selected items, select an entry and click .
- Click .
- In the Removing Cookies and Site Data confirmation dialog that opens, click .
- Close the about:preferences page.
To learn more about managing site data in Firefox, see Manage local site storage settings.