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.

Rohkem teavet

My entire firefox browser, upon start, will periodically shrink to a very small black cross at the top left of my screen. Does anyone know why?

  • 1 vastus
  • 2 on selline probleem
  • 2 views
  • Viimati vastas cor-el

more options

Periodically my Firefox browser, upon start, will disappear. When this first happened, I thought the browser didn't start. Then, I noticed at the top left hand corner a small black cross. When I move the mouse over it, I get the arrow to open the browser to the size I want. I thought maybe this was an issue with pop-ups, but that didn't explain why it would shrink the entire browser to a black crosshair. I have pop-up blockers turned on.

Periodically my Firefox browser, upon start, will disappear. When this first happened, I thought the browser didn't start. Then, I noticed at the top left hand corner a small black cross. When I move the mouse over it, I get the arrow to open the browser to the size I want. I thought maybe this was an issue with pop-ups, but that didn't explain why it would shrink the entire browser to a black crosshair. I have pop-up blockers turned on.

All Replies (1)

more options

Try to remove the Firefox plist file (org.mozilla.firefox.plist).

Go to "~/Library/Preferences" and remove the plist file for Firefox (org.mozilla.firefox.plist)

You can also check for problems with the localstore.rdf file.