send the mail, or save it to drafts and re open it.,

Thunderbird does not make links or email addresses active in the Write window so it is easier to edit them. Like Matt says the link will be active, if you type it correctly, when you send it. You can send it to yourself or save it to drafts to confirm that this is the case.

Sorry, it doesn't work. Here is the website I am trying to activate so that I can save it in My Documents and include it in emails to my friends: http://doncasteroffice.com/irelandtour2014/ I can only access it from the email in which it was originally sent to me. If I try to copy/paste it to another email, or save it to My Documents, it doesn't appear underlined and in blue, as it should if it was "active". If I enter it manually on Google, I get a message that it "doesn't match any documents." Emailing it to myself or to "Drafts" doesn't do anything either. It's just as if the link is dead. Try it yourself.

I'm trying to send the above to Airmail or Matt, but somehow it looks as if I am replying to my own question. Can either of you clear up this confusion?

FYI: You do not send a reply anywhere or to anyone. You post a reply in your original question and anyone that can help will respond.

I am not sure what you are trying to do. You do not save a URL to My Documents. You can bookmark a website in your Internet browser or I guess you could copy and paste a URL into a text document and save that but I am not sure why you would.

As stated above, if you copy and paste the URL into a new email the link WILL NOT be active until you send the email. If you are expecting it to turn blue and underline before that time you are going to be waiting a long time. Like forever. That is not going to happen.

It turns out that I needed to create a hyperlink to be able to open the website. My son showed me how to do that, so the problem is solved. Thanks for your help.

And do these hyperlinks actually work?

The link you provided is simply invalid. The web server claims it does not exist. Going to the web site and using it's menu system demonstrates that that does not work either.

I think doncasteroffice.com has some serious issues and should perhaps get a web master or designer that delivers functional web sites.

It is Ok I have worked it out.

The URL you posted was invalid. Once I corrected the case it works fine. So the issue here is you did not copy the link

See http://doncasteroffice.com/IrelandTour2014/ which works, because your web server is not windows. My guess is it is Apache hosted on Linux where IrelandTour2014 and irelandtour2014 are not the same thing, but two separate and entirely valid folders which will sit side by side.

So the issue is not that you had to create a hyperlink, it is that you were using the wrong address.