Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

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

Non-selected Tabs - Highlight on Hover

  • 5 replies
  • 1 has this problem
  • 40 views
  • Last reply by Slouch

more options

I'd like to highlight a non-selected tab when hovering the mouse over it.

I've tried this code in userChrome.css, but it has no effect...

  .tab-background:not([selected]):hover { /* highlight on mouseover */
     background-color: #dbe3eb !important;
  }

Is this method correct, or is there a better way?

Thanks!

I'd like to highlight a non-selected tab when hovering the mouse over it. I've tried this code in userChrome.css, but it has no effect... .tab-background:not([selected]):hover { /* highlight on mouseover */ background-color: #dbe3eb !important; } Is this method correct, or is there a better way? Thanks!

Modified by Slouch

Chosen solution

By chance, I tried the following, and it works...

#TabsToolbar .tabs-newtab-button:hover {
    background-color: #dbe3eb !important;
}

.tabs-newtab-button:hover .toolbarbutton-icon {
   background-color: #dbe3eb !important;
}

Didn't need the not([selected]) attribute, so I removed that as well.

Thank you :)

Read this answer in context 👍 0

All Replies (5)

more options

Does this code in userChrome.css wor for you?


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

.tabbrowser-tab:not([selected]):hover .tab-content { /* highlight on mouseover */
   background-color: #dbe3eb !important;
}

Modified by cor-el

more options

Yes, that does work, however it breaks my "Open a new tab" button, which no longer highlights on mouseover (only the '+' sign icon highlights, not the background of the button).

My code appears below yours. Without your code, the entire "Open a new tab" button highlights correctly.

.tabbrowser-tab:not([selected]):hover .tab-content { /* highlight non-selected tabs on mouseover */
   background-color: #dbe3eb !important;
}

#TabsToolbar .tabs-newtab-button {
  border-top: var(--classic_squared_tabs-border_size) solid var(--classic_squared_tabs-border2) !important;
  border-left: var(--classic_squared_tabs-border_size) solid var(--classic_squared_tabs-border2) !important;
  border-right: var(--classic_squared_tabs-border_size) solid var(--classic_squared_tabs-border2) !important;
  border-top-left-radius: var(--classic_squared_tabs-border-radius) !important;
  border-top-right-radius: var(--classic_squared_tabs-border-radius) !important;
  min-width: 0px !important;
  width: 28px !important;
  margin-bottom: 0px !important;
  border-color: #868b98 !important;
}

.tabs-newtab-button .toolbarbutton-icon {
 min-width: 0px !important;
 min-height: 0px !important;
 width: 14px !important;
 height: 14px !important;
 margin: 0px !important;
 margin-bottom: 0px !important;
 padding: 0px !important;
 box-shadow: unset !important;
}

Modified by Slouch

more options

I think that this has more to do with background: unset !important; When I remove this rule then at least I get some change on hover, but it is only a small box with your code.

more options

Yes, I took the background: unset line out, and now only the '+' icon is highlighted on mouseover.

Is there a way to have the entire button highlighted?

Modified by Slouch

more options

Chosen Solution

By chance, I tried the following, and it works...

#TabsToolbar .tabs-newtab-button:hover {
    background-color: #dbe3eb !important;
}

.tabs-newtab-button:hover .toolbarbutton-icon {
   background-color: #dbe3eb !important;
}

Didn't need the not([selected]) attribute, so I removed that as well.

Thank you :)

Modified by Slouch