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.

Avatar for Username

Search 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

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

userChrome.css does not have @namespace there is only xul

  • 1 resposta
  • 1 has this problem
  • 2 views
  • Last reply by cor-el

deltabravo
deltabravo
more options

Hi,

I am slightly concerned that my userChrome.css file does not contain the line:

@namespace url("https://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* set default namespace to XUL */

as understand this line should be in there.

However I'm not entirely certain what it does and what is the impact of not having it. I get the Ghostbusters allusion, but can anyone elaborate and advise whether or not i should add it in and if so where?

My current userChrome.css file: 

#main-window {
	background-color: transparent !important;
} 

#titlebar-buttonbox .titlebar-button {
	background-color: transparent !important;
}

#titlebar-buttonbox #titlebar-min:-moz-any(:hover,[open]), #titlebar-buttonbox #titlebar-max:-moz-any(:hover,[open]) {
	background-color: hsla(210,4%,10%,.08) !important;
}
#titlebar-buttonbox #titlebar-close:-moz-any(:hover,[open]) {
	background-color: hsla(360,100%,50%,.4) !important;
}

tab {height: 45px !important;}
.tabbrowser-strip {height: 45px !important;}


#navigator-toolbox toolbar:not(#nav-bar):not(#toolbar-menubar) { -moz-box-ordinal-group:10; }
#TabsToolbar { -moz-box-ordinal-group:1000!important; }
Hi, I am slightly concerned that my userChrome.css file does not contain the line: @namespace url("https://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* set default namespace to XUL */ as understand this line should be in there. However I'm not entirely certain what it does and what is the impact of not having it. I get the Ghostbusters allusion, but can anyone elaborate and advise whether or not i should add it in and if so where? My current userChrome.css file: <pre><nowiki>#main-window { background-color: transparent !important; } #titlebar-buttonbox .titlebar-button { background-color: transparent !important; } #titlebar-buttonbox #titlebar-min:-moz-any(:hover,[open]), #titlebar-buttonbox #titlebar-max:-moz-any(:hover,[open]) { background-color: hsla(210,4%,10%,.08) !important; } #titlebar-buttonbox #titlebar-close:-moz-any(:hover,[open]) { background-color: hsla(360,100%,50%,.4) !important; } tab {height: 45px !important;} .tabbrowser-strip {height: 45px !important;} #navigator-toolbox toolbar:not(#nav-bar):not(#toolbar-menubar) { -moz-box-ordinal-group:10; } #TabsToolbar { -moz-box-ordinal-group:1000!important; }</nowiki></pre>

cor-el modificouno o

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Did you create the userChrome.css file yourself?

It is your responsibility to ensure that the @namespace is at the start of the userChrome.css file if you used sample code posted on internet to create the file.