There is no "button" in the "reset-password" e-mail. What to try next?

I needed to re-set my password for Firefox Sync. But when the "password re-set" e-mail arrived, it instructed me to click a button, I would imagine to be able to validate my request. However, neither the original nor the second version of the e-mail that I requested had a button, nor did they have a link for me to copy & paste or click. How can I re-set my password in the absence of these options?