Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

Avatar for Username

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

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

When i open firefox on my mac it comes up in a small window in the upper left portion of my screen. How can I get it to open to full size by default?

  • 2 antwoorde
  • 1 het hierdie probleem
  • 1 view
  • Laaste antwoord deur cor-el

Melissa Chapman
Melissa Chapman
more options

When I open firefox on my mac, it opens in a small screen in the upper left portion of my screen. How can I set the default to open to a full size window?

When I open firefox on my mac, it opens in a small screen in the upper left portion of my screen. How can I set the default to open to a full size window?

All Replies (2)

FredMcD
FredMcD
more options

Grab a corner of the window and drag it out.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Try to rename/remove xulstore.json in the Firefox profile folder with Firefox closed.

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.