Hello,

Go to Menu Bar, click on "Tool">>"Options">>"General" , in this tab localize the o option "When starting firefox" change to Open Home Page.

That's the problem... that is what my setting already is. :\

And yet it still just opens the last tabs used anyway.

Go to about:config page and search for this option "browser.startup.page" change its value to 1

• How to go to about:config page?

Two other possibilities:

1. A user.js file may exist in your settings folder that contains the instruction to restore your previous session; or
2. Firefox might think it crashed, even if that is not apparent to you.

On the first point, this article has the steps to track down and remove any user.js file that is overriding your preferences: How to fix preferences that won't save.

On the second point, you can change how Firefox behaves when resuming after a crash to see whether this is the problem. What you would do is switch from automatically showing previous session tabs to showing a list of tabs. Here's how:

(A) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(B) In the search box above the list, type or paste sess and pause while the list is filtered

(C) Double-click the browser.sessionstore.max_resumed_crashes preference and enter 0 (that's a zero) and click OK.

The next time Firefox starts if you get the screen saying "this is embarrassing" and showing a list of your last session tabs, then the problem is that Firefox is crashing during shutdown.

You can check if you have an user.js file in the Firefox profile folder that sets the browser.sessionstore.resume_session_once pref to true.

• http://kb.mozillazine.org/browser.sessionstore.resume_session_once

You can use this button to go to the Firefox profile folder:

• Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)
• http://kb.mozillazine.org/Profile_folder_-_Firefox