Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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.

Learn More

how to change colors?

  • 2 svar
  • 3 har dette problem
  • 9 visninger
  • Seneste svar af cor-el

more options

Under preferences, mistakenly changed colors background to black.....so now whole page is black and can't see anything to undo!!!...Is there no way to contact this godforsaken company for help??

Under preferences, mistakenly changed colors background to black.....so now whole page is black and can't see anything to undo!!!...Is there no way to contact this godforsaken company for help??

Alle svar (2)

more options

What is your computer system and Firefox?

Are you using an add-on to change the color?

Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac=Options)
key, and then starting Firefox. Is the problem still there?

more options

You can try to edit the prefs.js file in the Firefox profile folder and remove the related lines or rename the prefs.js file to reset all prefs.

Look for:

  • browser.display.background_color
  • browser.display.foreground_color

You can find the profile folder in this hidden location:

In Mac OS X v10.7 and later, the ~/Library folder is a hidden folder.