So you are saying you do not want the warning page to open, is that correct. If it is I will not look for a fix for that as Norton is doing it's job correctly. (I have Norton and it blocks the page with a warning.) You say you do not want that or are you saying it opens a duplicate page. I do not think you have made it clear enough as to what is going on. (I certainly would not want that warning to go away.) Firefox/Google also put up a warning page if the page is listed in Googles data base. <b>The call for the Window or Page is being done by Norton Security.</b> You would have to ask them about the issue in their forum since it is the call from the Norton Program to open the warning. Open a account from this URL or login from this page : * https://community.norton.com/en/forums The only suggestion I have is a reinstall of Firefox and/or Norton : uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files and C:\Program Files(x86) Then restart system. Then run Windows Disk Cleanup. (Note: This should be Pinned and run Weekly, If never done below expect 10's of gig's) Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved. But you should make a back up before you do : *https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles *https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer Reinstall with Current Release Firefox 57.0.2 with a Full Version Installer *https://www.mozilla.org/firefox/all/ To reinstall your Norton Product log in here : *https://my.norton.com/ Fyi : There are new drivers for your Intel(R) HD Graphics 520 from this month : *https://downloadcenter.intel.com/product/88355/Intel-HD-Graphics-520 Please let us know if this solved your issue or if need further assistance.