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.

Etsi tuesta

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.

Lue lisää

What is the number that sometimes appears in a tab, like (4) Facebook?

  • 1 vastaus
  • 1 henkilöllä on sama ongelma
  • 1 näyttö
  • Viimeisin kirjoittaja cor-el

more options

It only seems to appear a small portion of the time, usually with the Facebook site, but occasionally with others.

I know this is a retro question, but is there an online "manual" that describes the Firefox interface in excruciating detail?

Thanks.

It only seems to appear a small portion of the time, usually with the Facebook site, but occasionally with others. I know this is a retro question, but is there an online "manual" that describes the Firefox interface in excruciating detail? Thanks.

Kaikki vastaukset (1)

more options

Sounds like a feature added by an extension

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).