Dette websted vil have begrænset funktionalitet, mens vi gennemgår vedligeholdelse for at forbedre din oplevelse. Hvis en artikel ikke løser dit problem, og du vil stille et spørgsmål, har vi vores supportfællesskab, der venter på at hjælpe dig på @FirefoxSupport på Twitter og/r/firefox på Reddit.

Søg i 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.

Læs mere

A weird glitch keeps appearing in the upper left corner, is this normal?

  • 1 svar
  • 1 har dette problem
  • 1 visning
  • Seneste svar af cor-el

more options

I keep having a weird glitch appear in the upper left hand corner of my firefox window. It appears right over the exit,minimize, and expand buttons. I don't know if this means if got a virus or something, but its quite strange and only happens with firefox.

I keep having a weird glitch appear in the upper left hand corner of my firefox window. It appears right over the exit,minimize, and expand buttons. I don't know if this means if got a virus or something, but its quite strange and only happens with firefox.

Alle svar (1)

more options

Start Firefox in Safe Mode to check if one of the extensions (Firefox menu button/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox menu button/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window

Try to set browser.tabs.drawInTitlebar to false on the about:config page to disable displaying the tabs in the title bar.

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.