Share webpage by email

Hi

One of these add-ons might help:

https://addons.mozilla.org/en-GB/firefox/search/?q=email%20tabs

Yes, I have this too, it used to be in the file menu>Share>email, as well as other options, and it would open a new message with the link in TB, but they've all gone in the last few days, all there is now is "copy link" and "more". Selecting "more" opens the system general preferences window, presumably suggesting I change some settings, but which ones?

I don't want to install an add-on, I just want firefox to do what it's always done.