Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多

What does the number in parenthesis on a Tab represent?

  • 3 回覆
  • 3 有這個問題
  • 477 次檢視
  • 最近回覆由 user633449

more options

Using Firefox 24.0 on a desktop and laptop, when I open Facebook the Tab title shows the Facebook icon, the number seven in parenthesis (7), and the word Facebook. What does it mean?

Using Firefox 24.0 on a desktop and laptop, when I open Facebook the Tab title shows the Facebook icon, the number seven in parenthesis (7), and the word Facebook. What does it mean?

被選擇的解決方法

For Facebook, that usually means you have 7 notifications. Other sites use it for different things.

從原來的回覆中察看解決方案 👍 0

所有回覆 (3)

more options

Sounds like something added by an extension.

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

  • Do NOT click the Reset button on the Safe Mode start window.
more options

The tab usually shows the data designated by the page between the <title> and </title>tags in the head section of the page. This might not might not be displayed in the page itself.

Some sites use a script to update the title of the page to reflect things like unread messages. If you notice the number going down when you read messages or notifications, that could be it.

more options

選擇的解決方法

For Facebook, that usually means you have 7 notifications. Other sites use it for different things.