Try [[Clear cookies and site data in Firefox#w_clear-cookies-for-the-current-website|clearing site cookies]] and [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems#w_disable-all-extensions|disabling your extensions]].

done that and issue still present.

Try right-clicking the site in History then ''Forget about this site''. Make sure you have a backup record of your user name and password before doing that because they will be forgotten also. https://support.mozilla.org/en-US/kb/delete-browsing-search-download-history-firefox#w_remove-a-single-website-from-your-history ---- If that doesn't fix the issue, try restarting in troubleshoot mode. https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems https://support.mozilla.org/en-US/kb/troubleshoot-issues-related-to-add-ons

Does it still happen in a [[Profile Manager - Create, remove or switch Firefox profiles|new profile]]? An easy way to test a new profile is to install [https://aurora.mozilla.org Developer Edition] and see if it happens there or [[Refresh Firefox - reset add-ons and settings|refresh your existing profile]].