Firefox has never had a "restart" menu item (except for Restart with Addons Disabled... in the Help menu), but there are a number of extensions which add a "restart" menu item.

You can "restart" by simply closing Firefox, waiting a minute or two, and then re-opening Firefox.

Well that's easy enough! I thought Restart automatically always re-opened all of your Windows and Tabs.

I changed my Tools/Option/when Firefox starts: from "show a blank page" to "Show my windows and tabs from my last time". because Firefox did not always display the "restore previous session" after I had shutdown or restarted my PC. Hope this helps.

I wish the instruction would have us not restart but have us close and reopen Firefox. Less confusing, UNLESS Mozilla would give us a RESTART option.

Thanks, Leo

Yes, the "restart" feature does open previous tabs and windows, but Mozilla doesn't provide a "restart" button as a standard part of Firefox. There is a feature for Restore Previous Session in the History menu and on the default Firefox homepage (about:home).

As I said before, there are a number of add-ons that have a "restart" button. Look thru this AMO search for "restart" button extensions.
https://addons.mozilla.org/en-US/firefox/search/?q=restart&appver=20.0&platform=windows

You can use the Developer Toolbar to restart Firefox.

• Web Developer > Developer Toolbar

Pressing the 'r' should bring up an help menu where you can click the restart entry.

• https://developer.mozilla.org/en/Tools/GCLI

I'd seen the Add On's but it seemed they were not necessary after I read a few responses.

I got enough courage and just now tried the Developer Toolbar and type "restart true" and everything came back just the way I had it.

Thanks for the info - Leo