Hi ebonywalk, could you check your Firefox Add-ons? You also could run a malware cleaning app. ''Firefox Extensions'' One possible culprit would be an extension. You can view, disable, and often remove unwanted or unknown extensions on the Add-ons page. Either: * Command+Shift+a (Windows: Ctrl+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. 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 that sounds related, or 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? ''Malware Cleaner'' Malwarebytes for Mac is a well-related cleaning program with both free and paid offerings. Due to a link filter, this URL isn't going to work, but if select it and right-click (one button mouse? Ctrl+click) you can use the "Search Google" option to get to the page. https://www.malwarebytes.com/mac/