My developer shared this shortcut with me today and I absolutely love
it. Make a favorite to anywhere (I like to put the good ones in the
Links folder). Call it "Create Tiny Url". Subsequently edit the
Properties of the favorite and set the URL to:
javascript:location.href="http://tinyurl.com/create.php?url="+location.h
ref

Then click OK. You will get an error that the protocol "javascript" does
not have a registered program. Click Yes anyway.

Then navigate to a URL that is too long to copy and paste into an email
without the risk of the URL link wrapping and being truncated so that
the end user cannot click on it. Select the favorite you created and you
will be directly taken to the TinyUrl site and a short link will be
instantly copied to your buffer. You merely need to paste it into the
email and enjoy.