title: In Firefox, how do I see HTTP request headers? (where in web console?)
body: <p>(Edited, I had 'in 2016' but it's not 2016 yet. I meant 'currently')</p>
  
  <p>Things that haven't worked for me so far:</p>
  
  <p>Looking at web console functionality in Firefox (I may be blind)</p>
  
  <p>Looking at web console documentation at <a href="https://developer.mozilla.org/en-US/docs/Tools/Web_Console" rel="noreferrer">mozilla.org - web console doc</a> (the video won't play; I may be missing it.  People say it's in the web console but I don't see any headers in the web console.  I expect to see meta tags, and redirects in particular are driving me nuts at the moment.)</p>
  
  <p>Tried a couple expired addons in Firefox (there's a fix claimed but I doubt it works yet - <a href="https://addons.mozilla.org/en-US/firefox/search/?q=http%20headers" rel="noreferrer">search for addons at mozilla.org</a></p>