Hi, the Talktalk home page for example, should be accessible in the same way as any other site irrespective of whether it's your ISP. I assume you don't mean that you can't access your router login. Try deleting ALL references to Talktalk. To do that, open the 3-bar menu, choose History (looks like a clock), then click the Show All History link at the bottom of the list to open the Library window. Search for Talktalk by typing its name in the Search History field in the top-right corner, then press Enter. Now in the search results, right-click on Talktalk, and select Forget About This Site. (Browsing and download history, cookies, cache, active logins, passwords, saved form data, exceptions for cookies, images and pop-ups for that site will be removed). Give it a minute to complete the deletion, then try the site (not from an old bookmark) again. More - [[Delete browsing, search and download history on Firefox]] ''If your question is resolved by this or another answer, please take a minute to let us know. Thank you!''