That seems to be a gmail issue. Try removing cookies or forgetting the site, otherwise troubleshooting.

https://support.mozilla.org/en-US/kb/clear-cookies-and-site-data-firefox https://support.mozilla.org/en-US/kb/delete-browsing-search-download-history-firefox#w_remove-a-single-website-from-your-history

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 (also deals with hardware acceleration) https://support.mozilla.org/en-US/kb/troubleshoot-issues-related-to-add-ons

https://support.mozilla.org/en-US/kb/problems-with-email-how-to-find-help

This issue is solved but I found something unique the spammers are doing They preface their email address with my g-mail address so when I block them I am blocking my email address as well as their email address

I looked at my blocked email address and found this format on one entry my g-mail address then "OR" and the spammers email address as a blocked entry

Suggestion Log in to G-mail Select Settings upper right then select See All Settings then select Filters and Blocked Address DO a Ctrl F and search for your email address it may be entered multiple times JUST delete these entries

That is nasty behaviour. I'm glad you found it.