You referred to pinned tabs. Are you leaving at least one non-pinned tab open when you end your session, or only pinned tabs? Possibly Firefox always needs at least one non-pinned tab at startup; I've never tested that.

Also, are you ending your previous Firefox sessions using one of these procedures:

• "3-bar" menu button > Exit/Quit
• (menu bar) File > Exit/Quit
• closing the last window (because you only need that one restored)

Thank you for replying. As you said: Firefox always needs at least one non-pinned tab at startup! That's the bug, or the program glitch, or whatever one calls it. Now, I do not have/use any proprietary operating systems such as MS & Mac, I'm Linux only, and FF comes as the default browser for most Ubuntu based OS packages (I'm currently LMDE-4). But I also have Chrome and Opera on one or more machines, and they do not require this; they will simply launch with the pinned tabs only. But yes, if you exit with one unpinned tab, it will open with just that same one tab: This glitch is only when there are pinned tabs at exit. Thus, each time I launch FF I have to close the new-tab tab that opens in front of the pinned tabs that I wish to launch.

You can set the startup page to a blank page. You need to make the change directly to a pref on the about:config page to set the startup page. You can set this pref to 2 on the about:config page.

• browser.startup.page = 2

I followed these instructions (browser.startup.page = 2). The only change in behavior is that now, the new tab page is blank instead of the normal New Tabs page, but it's still there at start-up. I reverted back to 3. But thanks anyway; I will now logically assume this is a design glitch, and thus not able to be changed or fixed in any setting. Perhaps the designers will see this (it was who I've been trying to contact all along), and make the correction in the next update. But I am truly thankful for those who tried to help in this.