It appears you posted your question using Chrome. ?? To find your current Firefox version, you can check the Troubleshooting Information page. Either: * "3-bar" menu button > "?" button > Troubleshooting Information * (menu bar) Help > Troubleshooting Information * type or paste about:support in the address bar and press Enter In the first table on the page, what do you have for '''Version''' and ''' User Agent'''?

See also: *https://support.mozilla.org/en-US/kb/how-reset-default-user-agent-firefox *https://support.mozilla.org/en-US/kb/Finding+your+Firefox+version *https://support.mozilla.org/en-US/kb/websites-say-firefox-outdated-or-incompatible