Hi matttnguyen, thank you for sharing your Firefox Add-ons list. Did you already try using their toolbar buttons to make "exceptions" in Privacy Badger and uBlock Origin when you are on those sites? Can you spot a "shield" icon at the left end of the address bar? That would indicate Firefox's Tracking Protection feature is blocking some content in the page, which is normal in a private window. Try clicking the shield and making a temporary exception; that worked for me on North Face. More info on this feature: [[Tracking Protection]]. ---- More generally, if a site is generally known to work in Firefox, these are general suggestions to try when it stops working correctly: '''Cache and Cookies:''' When you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site. (1) Clear Firefox's Cache See: [[How to clear the Firefox cache]] If you have a large hard drive, this might take a few minutes. If you do not see the number going down on the page, you can reload it using Ctrl+r to check progress. (2) Remove the site's cookies (save any pending work first). While viewing a page on the site, try either: * right-click (on Mac Ctrl+click) a blank area of the page and choose View Page Info > Security > "View Cookies" * (menu bar) Tools > Page Info > Security > "View Cookies" * click the padlock or "i" icon in the address bar, then the ">" button, then More Information, and finally the "View Cookies" button In the dialog that opens, the current site should be pre-filled in the search box at the top of the dialog so you can remove that site's cookies individually. Then try reloading the page. Does that help?