Hi Sean, the miniature tab sounds like a pinned tab. ''More info on pinned tabs in case you're curious:'' [[Pinned Tabs - keep favorite websites open and just a click away]]. Perhaps you have one or more other add-ons that keep on eye on where you're shopping. You can view, disable, and often remove unwanted or unknown extensions on the Add-ons page. Either: * Ctrl+Shift+a (Mac: Command+Shift+a) * "3-bar" menu button (or Tools menu) > Add-ons * type or paste '''about:addons''' in the address bar and press Enter/Return In the left column of the Add-ons page, click Extensions. On the right side, find the "Manage Your Extensions" heading. ''If there is at least one extension before the next heading -- "Recommended Extensions" -- please continue:'' Then cast a critical eye over the list below that heading. Any extensions Firefox installs for built-in features are hidden from this page, so everything listed here is your choice (and your responsibility) to manage. Anything suspicious or that you just do not remember installing or why? If in doubt, disable (or remove). For your privacy and security, don't let mystery programs linger here. Any improvement? Some users have a rogue extension that can block or blank the Add-ons page. In order to weed your list in that case, you need to use Firefox's Troubleshoot Mode to temporarily disable all add-ons. Here's how: You can restart Firefox in Safe/Troubleshoot Mode using either: * "3-bar" menu button > Help > Troubleshoot Mode... * (menu bar) Help menu > Troubleshoot Mode... and OK the restart. A small dialog should appear. Click the Open button -- don't click Refresh unless you want to get a clean(er) start. ''More about data loss with Refresh:'' [[Refresh Firefox - reset add-ons and settings]]. Can you regain control?

A Google search comes up with the Teleparty extension: * https://old.reddit.com/r/firefox/comments/111i0s7/random_pinned_website_opens_randomly/?rdt=46000