1. Via the address bar, go to about:networking#dns > click the 'Clear DNS Cache' button2. Clear the browser cache:- press Ctrl-Shift-Delete (Mac: Cmd-Shift-Delete)- set 'Time range...' to 'Everything'- untick all items except 'Temporary cached files ...
There's no email support - try https://support.mozilla.org/en-US/questions/new/firefox and click the 'Ask a Question' Continue button. If that doesn't work, try another browser.
@CBX, support requests aren't allowed here. Please post your question with full details athttps://support.mozilla.org/en-US/questions/new/firefox/form.
@Berped, support requests aren't allowed here. Please post your question with full details athttps://support.mozilla.org/en-US/questions/new/firefox/form.