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

Wo archive tread sia. Meɖekuku bia biabia yeye ne ehia kpeɖeŋu.

userChrome.css not working

user115335224976569831892259620582246724006
user115335224976569831892259620582246724006
more options

Hello,

I am wondering why userChrome.css is not loading. toolkit.legacyUserProfileCustomizations.stylesheets is set to true (about:config). I loaded userChrome.css opening the Profile Folder in about:support and dragging and dropping a "chrome" folder that contains userChrome.css respecting case sensitivity and file types. So the file now is under C:\Users\marce\AppData\Roaming\Mozilla\Firefox\Profiles\sv6gplmb.default-release-1681224431322\chrome. The css is simple, it is valid and it works in the Style Editor:

.search-wrapper .search-handoff-button, .search-wrapper input { 

 background: var(--newtab-background-color-secondary) var(--newtab-search-icon) 16px center no-repeat;
 background-size: 24px;
 padding-inline-start: 52px;
 padding-inline-end: 10px;
 padding-block: 0;
 width: 100%;
 box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
 border: 1px solid transparent;
 border-radius: 8px;
 color: var(--newtab-text-primary-color);
 -moz-context-properties: fill;
 fill: var(--newtab-text-secondary-color);

}

.top-site-outer .tile { 

 border-radius: 8px;
 box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
 background-color: var(--newtab-background-color-secondary);
 justify-content: center;
 margin: 0 auto;
 height: 80px;
 width: 80px;
 cursor: pointer;
 position: relative;
 align-items: center;
 color: var(--newtab-text-secondary-color);
 display: flex;
 font-size: 32px;
 font-weight: 200;
 text-transform: uppercase;

}

.ds-card-grid.ds-card-grid-border .ds-card:not(.placeholder) { 

 border-radius: 8px;
 box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);

}

.card-outer .card { 

 border-radius: 8px;
 box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
 height: 100%;

}

However, userChrome.css does show up on the left column in the style editor. Very odd. I restarted the browser of course.

Is this no longer supported? I am using Firefox (regular edition, not dev or nightly) and Windows 11.

Hope someone can help! Thanks in advance

Hello, I am wondering why userChrome.css is not loading. toolkit.legacyUserProfileCustomizations.stylesheets is set to true (about:config). I loaded userChrome.css opening the Profile Folder in about:support and dragging and dropping a "chrome" folder that contains userChrome.css respecting case sensitivity and file types. So the file now is under C:\Users\marce\AppData\Roaming\Mozilla\Firefox\Profiles\sv6gplmb.default-release-1681224431322\chrome. The css is simple, it is valid and it works in the Style Editor: .search-wrapper .search-handoff-button, .search-wrapper input { background: var(--newtab-background-color-secondary) var(--newtab-search-icon) 16px center no-repeat; background-size: 24px; padding-inline-start: 52px; padding-inline-end: 10px; padding-block: 0; width: 100%; box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32); border: 1px solid transparent; border-radius: 8px; color: var(--newtab-text-primary-color); -moz-context-properties: fill; fill: var(--newtab-text-secondary-color); } .top-site-outer .tile { border-radius: 8px; box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32); background-color: var(--newtab-background-color-secondary); justify-content: center; margin: 0 auto; height: 80px; width: 80px; cursor: pointer; position: relative; align-items: center; color: var(--newtab-text-secondary-color); display: flex; font-size: 32px; font-weight: 200; text-transform: uppercase; } .ds-card-grid.ds-card-grid-border .ds-card:not(.placeholder) { border-radius: 8px; box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32); } .card-outer .card { border-radius: 8px; box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32); height: 100%; } However, userChrome.css does show up on the left column in the style editor. Very odd. I restarted the browser of course. Is this no longer supported? I am using Firefox (regular edition, not dev or nightly) and Windows 11. Hope someone can help! Thanks in advance

Ŋuɖoɖo si wotia

That looks like code for the Firefox Home page and such CSS code should be in userContent.css. If the code isn't working then you may have to add the !important flag as it is possible that you need to override existing rules. 

@-moz-document
  url-prefix(about:newtab),
  url-prefix(about:home) {
 .search-wrapper .search-handoff-button,
 .search-wrapper input {
  background: var(--newtab-background-color-secondary) var(--newtab-search-icon) 16px center no-repeat;
  background-size: 24px;
  padding-inline-start: 52px;
  padding-inline-end: 10px;
  padding-block: 0;
  width: 100%;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--newtab-text-primary-color);
  -moz-context-properties: fill;
  fill: var(--newtab-text-secondary-color);
 }

 .top-site-outer .tile {
  border-radius: 8px;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
  background-color: var(--newtab-background-color-secondary);
  justify-content: center;
  margin: 0 auto;
  height: 80px;
  width: 80px;
  cursor: pointer;
  position: relative;
  align-items: center;
  color: var(--newtab-text-secondary-color);
  display: flex;
  font-size: 32px;
  font-weight: 200;
  text-transform: uppercase;
 }

 .ds-card-grid.ds-card-grid-border .ds-card:not(.placeholder) {
  border-radius: 8px;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
 }

 .card-outer .card {
  border-radius: 8px;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
  height: 100%;
 }
}

Xle ŋuɖoɖo sia le goya me 👍 0

All Replies (12)

TyDraniu
TyDraniu
  • Top 25 Contributor
more options

Shouldn't it be userContent.css?

user115335224976569831892259620582246724006
user115335224976569831892259620582246724006 Biabia la
more options

I believe it is userChrome.css for the NTP, userContent.css? for content... either way, I just added a minimal userContent.css and it doesn't load either. I am beginning to wonder if it only works in Firefox Developer, Firefox Nightly or it just doesn't work at all...

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

Ɖɔɖɔɖo si wotia

That looks like code for the Firefox Home page and such CSS code should be in userContent.css. If the code isn't working then you may have to add the !important flag as it is possible that you need to override existing rules. 

@-moz-document
  url-prefix(about:newtab),
  url-prefix(about:home) {
 .search-wrapper .search-handoff-button,
 .search-wrapper input {
  background: var(--newtab-background-color-secondary) var(--newtab-search-icon) 16px center no-repeat;
  background-size: 24px;
  padding-inline-start: 52px;
  padding-inline-end: 10px;
  padding-block: 0;
  width: 100%;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--newtab-text-primary-color);
  -moz-context-properties: fill;
  fill: var(--newtab-text-secondary-color);
 }

 .top-site-outer .tile {
  border-radius: 8px;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
  background-color: var(--newtab-background-color-secondary);
  justify-content: center;
  margin: 0 auto;
  height: 80px;
  width: 80px;
  cursor: pointer;
  position: relative;
  align-items: center;
  color: var(--newtab-text-secondary-color);
  display: flex;
  font-size: 32px;
  font-weight: 200;
  text-transform: uppercase;
 }

 .ds-card-grid.ds-card-grid-border .ds-card:not(.placeholder) {
  border-radius: 8px;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
 }

 .card-outer .card {
  border-radius: 8px;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
  height: 100%;
 }
}

user115335224976569831892259620582246724006
user115335224976569831892259620582246724006 Biabia la
more options

TyDraniu said
Shouldn't it be userContent.css?

You were right. My appologies.

user115335224976569831892259620582246724006
user115335224976569831892259620582246724006 Biabia la
more options

TyDraniu said
Shouldn't it be userContent.css?

cor-el said
That looks like code for the Firefox Home page and such CSS code should be in userContent.css. If the code isn't working then you may have to add the !important flag as it is possible that you need to override existing rules. 
@-moz-document
  url-prefix(about:newtab),
  url-prefix(about:home) {
 .search-wrapper .search-handoff-button,
 .search-wrapper input {
  background: var(--newtab-background-color-secondary) var(--newtab-search-icon) 16px center no-repeat;
  background-size: 24px;
  padding-inline-start: 52px;
  padding-inline-end: 10px;
  padding-block: 0;
  width: 100%;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--newtab-text-primary-color);
  -moz-context-properties: fill;
  fill: var(--newtab-text-secondary-color);
 }

 .top-site-outer .tile {
  border-radius: 8px;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
  background-color: var(--newtab-background-color-secondary);
  justify-content: center;
  margin: 0 auto;
  height: 80px;
  width: 80px;
  cursor: pointer;
  position: relative;
  align-items: center;
  color: var(--newtab-text-secondary-color);
  display: flex;
  font-size: 32px;
  font-weight: 200;
  text-transform: uppercase;
 }

 .ds-card-grid.ds-card-grid-border .ds-card:not(.placeholder) {
  border-radius: 8px;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
 }

 .card-outer .card {
  border-radius: 8px;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
  height: 100%;
 }
}

Thank you and TyDraniu

cor-el said
That looks like code for the Firefox Home page and such CSS code should be in userContent.css. If the code isn't working then you may have to add the !important flag as it is possible that you need to override existing rules. 
@-moz-document
  url-prefix(about:newtab),
  url-prefix(about:home) {
 .search-wrapper .search-handoff-button,
 .search-wrapper input {
  background: var(--newtab-background-color-secondary) var(--newtab-search-icon) 16px center no-repeat;
  background-size: 24px;
  padding-inline-start: 52px;
  padding-inline-end: 10px;
  padding-block: 0;
  width: 100%;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--newtab-text-primary-color);
  -moz-context-properties: fill;
  fill: var(--newtab-text-secondary-color);
 }

 .top-site-outer .tile {
  border-radius: 8px;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
  background-color: var(--newtab-background-color-secondary);
  justify-content: center;
  margin: 0 auto;
  height: 80px;
  width: 80px;
  cursor: pointer;
  position: relative;
  align-items: center;
  color: var(--newtab-text-secondary-color);
  display: flex;
  font-size: 32px;
  font-weight: 200;
  text-transform: uppercase;
 }

 .ds-card-grid.ds-card-grid-border .ds-card:not(.placeholder) {
  border-radius: 8px;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
 }

 .card-outer .card {
  border-radius: 8px;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
  height: 100%;
 }
}

cor-el said
That looks like code for the Firefox Home page and such CSS code should be in userContent.css. If the code isn't working then you may have to add the !important flag as it is possible that you need to override existing rules. 
@-moz-document
  url-prefix(about:newtab),
  url-prefix(about:home) {
 .search-wrapper .search-handoff-button,
 .search-wrapper input {
  background: var(--newtab-background-color-secondary) var(--newtab-search-icon) 16px center no-repeat;
  background-size: 24px;
  padding-inline-start: 52px;
  padding-inline-end: 10px;
  padding-block: 0;
  width: 100%;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--newtab-text-primary-color);
  -moz-context-properties: fill;
  fill: var(--newtab-text-secondary-color);
 }

 .top-site-outer .tile {
  border-radius: 8px;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
  background-color: var(--newtab-background-color-secondary);
  justify-content: center;
  margin: 0 auto;
  height: 80px;
  width: 80px;
  cursor: pointer;
  position: relative;
  align-items: center;
  color: var(--newtab-text-secondary-color);
  display: flex;
  font-size: 32px;
  font-weight: 200;
  text-transform: uppercase;
 }

 .ds-card-grid.ds-card-grid-border .ds-card:not(.placeholder) {
  border-radius: 8px;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
 }

 .card-outer .card {
  border-radius: 8px;
  box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32);
  height: 100%;
 }
}

Thank you TyDraniu and cor-el ! It does work. Yes, it was userContent.css and I also needed to add the important flag.

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

You're welcome.

Can you post your CSS code updated with !important in case other want to use it ?

user115335224976569831892259620582246724006
user115335224976569831892259620582246724006 Biabia la
more options

cor-el said
You're welcome. Can you post your CSS code updated with !important in case other want to use it ?


Sure, I just added more prominent drop shadows to shortcuts, pocket recommendations and recent activity using: box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32) !important;

Here is the full code:


@-moz-document 

 url-prefix(about:newtab),
 url-prefix(about:home) {
.search-wrapper .search-handoff-button,
.search-wrapper input {
 background: var(--newtab-background-color-secondary) var(--newtab-search-icon) 16px center no-repeat;
 background-size: 24px;
 padding-inline-start: 52px;
 padding-inline-end: 10px;
 padding-block: 0;
 width: 100%;
 box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32) !important;
 border: 1px solid transparent;
 border-radius: 8px;
 color: var(--newtab-text-primary-color);
 -moz-context-properties: fill;
 fill: var(--newtab-text-secondary-color);
}

.top-site-outer .tile {
 border-radius: 8px;
 box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32) !important;
 background-color: var(--newtab-background-color-secondary);
 justify-content: center;
 margin: 0 auto;
 height: 80px;
 width: 80px;
 cursor: pointer;
 position: relative;
 align-items: center;
 color: var(--newtab-text-secondary-color);
 display: flex;
 font-size: 32px;
 font-weight: 200;
 text-transform: uppercase;
}

.ds-card-grid.ds-card-grid-border .ds-card:not(.placeholder) {
 border-radius: 8px;
 box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32) !important;
}

.card-outer .card {
 border-radius: 8px;
 box-shadow: 12px 12px 6px rgba(0, 0, 0, 0.32) !important;
 height: 100%;
}

}

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

Thanks.

user115335224976569831892259620582246724006
user115335224976569831892259620582246724006 Biabia la
more options

You are welcome. Here is the one I ended up using. It makes the word "Firefox" a bit bigger, it removes the logo (nothing wrong with it but I like it better this way) and the drop shadows are more subtle. It is the one I ended up using.

.search-wrapper .search-handoff-button, .search-wrapper input { 

   background: var(--newtab-background-color-secondary) var(--newtab-search-icon) 16px center no-repeat;
   background-size: 24px;
   padding-inline-start: 52px;
   padding-inline-end: 10px;
   padding-block: 0;
   width: 100%;
   box-shadow: 6px 6px 3px rgba(0, 0, 0, 0.32) !important;
   border: 1px solid transparent;
   border-radius: 8px;
   color: var(--newtab-text-primary-color);
   -moz-context-properties: fill;
   fill: var(--newtab-text-secondary-color);
 }
 
 .top-site-outer .tile {
   border-radius: 8px;
   box-shadow: 6px 6px 3px rgba(0, 0, 0, 0.32) !important;
   background-color: var(--newtab-background-color-secondary);
   justify-content: center;
   margin: 0 auto;
   height: 80px;
   width: 80px;
   cursor: pointer;
   position: relative;
   align-items: center;
   color: var(--newtab-text-secondary-color);
   display: flex;
   font-size: 32px;
   font-weight: 200;
   text-transform: uppercase;
 }
 
 .ds-card-grid.ds-card-grid-border .ds-card:not(.placeholder) {
   border-radius: 8px;
   box-shadow: 6px 6px 3px rgba(0, 0, 0, 0.32) !important;
 }
 
 .card-outer .card {
   border-radius: 8px;
   box-shadow: 6px 6px 3px rgba(0, 0, 0, 0.32) !important;
   height: 100%;
 }
 
 .search-wrapper .search-inner-wrapper {
   display: none !important;
 }

 .search-wrapper .logo-and-wordmark .logo {
   display: none !important;
 }

 .search-wrapper .logo-and-wordmark .wordmark {
   background: url("chrome://branding/content/firefox-wordmark.svg") no-repeat center center;
     background-size: auto;
   background-size: 200px !important;
   -moz-context-properties: fill;
   display: inline-block;
   fill: var(--newtab-wordmark-color);
   height: 82px;
   margin-inline-start: 0px !important;
   width: 200px !important;
 }
cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Note that there is a pref for showing the logo on the Firefox Home page.

  • about:config => browser.newtabpage.activity-stream.logowordmark.AlwaysVisible
user115335224976569831892259620582246724006
user115335224976569831892259620582246724006 Biabia la
more options

cor-el said
Note that there is a pref for showing the logo on the Firefox Home page.
  • about:config => browser.newtabpage.activity-stream.logowordmark.AlwaysVisible

That is cool, however, it do want to see the word "Firefox".

user115335224976569831892259620582246724006
user115335224976569831892259620582246724006 Biabia la
more options

And along came the 111. 3 update and messed everything up... So everyone knows...