為了改善您的使用體驗,本網站正在進行維護,部分功能暫時無法使用。若本站的文件無法解決您的問題,想要向社群發問的話,請到 Twitter 上的 @FirefoxSupport 或 Reddit 上的 /r/firefox 發問,我們的社群成員將很快會回覆您的疑問。

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

Is the appearance of Javascript alerts modifiable in Firefox 4.0?

  • 7 回覆
  • 18 有這個問題
  • 1 次檢視
  • 最近回覆由 cor-el

more options

Firefox 4.0 allows users to do a lot of customizing, which is great. Does this extend to the appearance of Javascript alerts?

Unlike Firefox 3.6, in version 4.0 when an alert pops up, the underlying web page is darkened, half opaque and half transparent. This focuses the user's attention on the alert box. Is there a way for me to change this setting to be 20% opaque, 80% transparent? That would make it easier for me to see what the alert is trying to tell me about the underlying web page.

Firefox 4.0 allows users to do a lot of customizing, which is great. Does this extend to the appearance of Javascript alerts? Unlike Firefox 3.6, in version 4.0 when an alert pops up, the underlying web page is darkened, half opaque and half transparent. This focuses the user's attention on the alert box. Is there a way for me to change this setting to be 20% opaque, 80% transparent? That would make it easier for me to see what the alert is trying to tell me about the underlying web page.

被選擇的解決方法

You can use code in Stylish or add code to userChrome.css below the @namespace line to change the background color and the transparency.

Some examples (first is the current default; only use one):

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */

tabmodalprompt { background-color: rgba(25, 25, 25, 0.5) !important; }
tabmodalprompt { background-color: rgba(224, 224, 224, 0.1) !important; }
tabmodalprompt { background-color: transparent !important; }

從原來的回覆中察看解決方案 👍 1

所有回覆 (7)

more options

Looks like this CSS code:

  • chrome://global/skin/tabprompts.css
more options

cor-el, when I go to the address in your reply, I see the Tab Modal Prompt styles, and I see a value of .5 for the alpha channel, but I don't understand whether this means that it can or cannot be tweaked by the user. Can you please elaborate? Thanks!

more options

選擇的解決方法

You can use code in Stylish or add code to userChrome.css below the @namespace line to change the background color and the transparency.

Some examples (first is the current default; only use one):

@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */

tabmodalprompt { background-color: rgba(25, 25, 25, 0.5) !important; }
tabmodalprompt { background-color: rgba(224, 224, 224, 0.1) !important; }
tabmodalprompt { background-color: transparent !important; }

more options

Perfect! Thank you, cor-el.

more options

You're welcome.

Which code did you decide to use?

more options

I used

tabmodalprompt

{ 
 background-color: rgba(224, 224, 224, 0.1) !important; 
}

Now that you've shown me the articles on creating a userChrome.css file, I can learn a lot more about customizing.

more options

Thanks for posting that code.

See also this mozillaZine forum thread with a lot of examples for Firefox 4.

"Fx4 .css tweaks":