This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Starting Up Firefox

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by FredMcD

more options

I have a quick question, whenever I open Firefox - it opens to it being 'Restore Down' or as the smaller window. And even when I full size it and try to restore previous session, it changes it to being the smaller window... I'm just really confused as this has been bothering me for a little bit.

I have a quick question, whenever I open Firefox - it opens to it being 'Restore Down' or as the smaller window. And even when I full size it and try to restore previous session, it changes it to being the smaller window... I'm just really confused as this has been bothering me for a little bit.

All Replies (2)

more options

Here is an old trick... Open Firefox and get it set to the size and location you want. Then hold the ctrl key and while holding the key click on the X(top right corner)to close the browser. Open it again to see if it worked. Fingers crossed.  ;-))

more options

If the above does not help,

https://support.mozilla.org/en-US/kb/changes-toolbars-and-window-sizes-are-not-saved You may have corrupt xulstore.json file.

Close Firefox. Open your file browser to this hidden location:

  • Mac: *~/Library/Application Support/Firefox/Profiles
  • Linux: *~/.mozilla/firefox/Profiles
  • Windows: %AppData%\Mozilla\Firefox\Profiles
  • *C:\Users\<user>\AppData\Roaming\Mozilla\Firefox\Profiles
  • Windows XP: C:\Documents and Settings\<user>\Application Data \Mozilla\Firefox\Profiles\

Search for the above file. Then rename or delete it. Restart Firefox.