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Change tab height

Posted

Hi all,

I'd like to modify the tab height, to make it thinner. Is this something that can be done, perhaps via the userChrome.css file?

Thanks in advance.

Hi all, I'd like to modify the tab height, to make it thinner. Is this something that can be done, perhaps via the userChrome.css file? Thanks in advance.

Chosen solution

Try this code for the height. Make sure that --tab-min-height has the same value in both places.


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

/* TABS: height */
:root {
 --tab-toolbar-navbar-overlap: 0px !important; /* fix for full screen mode */
 --tab-min-height: 25px !important;
}
:root #tabbrowser-tabs {
 --tab-min-height: 25px !important;
}
#TabsToolbar {height: var(--tab-min-height) !important;}
Read this answer in context 1
TyDraniu
  • Top 25 Contributor
323 solutions 1848 answers
  1. Go to ≡ -> Customize…
  2. Press Density and select Compact.
# Go to ≡ -> Customize… # Press '''Density''' and select ''Compact''.
cor-el
  • Top 10 Contributor
  • Moderator
17537 solutions 158575 answers

Try this code in userChrome.css

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

:root {
  /* fix for full screen mode */
  --tab-toolbar-navbar-overlap: 0px !important;
  /* set minimum tab height  */
  --tab-min-height: 25px !important;
}

#TabsToolbar {height:var(--tab-min-height)!important; margin-top:-1px!important; margin-bottom:1px!important}

You may need this code as well:

/* Override vertical shifts when moving a tab */
#TabsToolbar[movingtab] {padding-bottom:0px!important}
#TabsToolbar[movingtab] > .tabbrowser-tabs {padding-bottom:0px!important; margin-bottom:0px!important}
#TabsToolbar[movingtab] + #nav-bar {margin-top:0px!important}
Try this code in userChrome.css <pre><nowiki> @namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */ :root { /* fix for full screen mode */ --tab-toolbar-navbar-overlap: 0px !important; /* set minimum tab height */ --tab-min-height: 25px !important; } #TabsToolbar {height:var(--tab-min-height)!important; margin-top:-1px!important; margin-bottom:1px!important}</nowiki></pre> You may need this code as well: <pre><nowiki>/* Override vertical shifts when moving a tab */ #TabsToolbar[movingtab] {padding-bottom:0px!important} #TabsToolbar[movingtab] > .tabbrowser-tabs {padding-bottom:0px!important; margin-bottom:0px!important} #TabsToolbar[movingtab] + #nav-bar {margin-top:0px!important} </nowiki></pre>

Question owner

@TyDraniu: I would like to keep Density set to "Touch" to have a wider toolbar.

@cor-el: I've inserted both snippets, it has no effect.

@TyDraniu: I would like to keep Density set to "Touch" to have a wider toolbar. @cor-el: I've inserted both snippets, it has no effect.
jscher2000
  • Top 10 Contributor
8773 solutions 71728 answers

Helpful Reply

Hi dr01, are you familiar with the Browser Toolbox? It has an Inspector tool you can use to poke around in the toolbar area and test changes interactively by finding and modifying the values Firefox is applying (in the Rules pane to the right of the structural diagram). Once you find an approach that works, you can formalize a rule for your userChrome.css file.

https://developer.mozilla.org/docs/Tools/Browser_Toolbox

Hi dr01, are you familiar with the Browser Toolbox? It has an Inspector tool you can use to poke around in the toolbar area and test changes interactively by finding and modifying the values Firefox is applying (in the Rules pane to the right of the structural diagram). Once you find an approach that works, you can formalize a rule for your userChrome.css file. https://developer.mozilla.org/docs/Tools/Browser_Toolbox
cor-el
  • Top 10 Contributor
  • Moderator
17537 solutions 158575 answers

Chosen Solution

Try this code for the height. Make sure that --tab-min-height has the same value in both places.


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

/* TABS: height */
:root {
 --tab-toolbar-navbar-overlap: 0px !important; /* fix for full screen mode */
 --tab-min-height: 25px !important;
}
:root #tabbrowser-tabs {
 --tab-min-height: 25px !important;
}
#TabsToolbar {height: var(--tab-min-height) !important;}
Try this code for the height. Make sure that --tab-min-height has the same value in both places. <hr> <pre><nowiki>@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); /* only needed once */ /* TABS: height */ :root { --tab-toolbar-navbar-overlap: 0px !important; /* fix for full screen mode */ --tab-min-height: 25px !important; } :root #tabbrowser-tabs { --tab-min-height: 25px !important; } #TabsToolbar {height: var(--tab-min-height) !important;} </nowiki></pre>

Question owner

Thanks cor-el, this code works.

@jscher2000: Where are the Developer Tools Settings? I can't seem to find them on my Firefox (v64.0).

Thanks cor-el, this code works. @jscher2000: Where are the Developer Tools Settings? I can't seem to find them on my Firefox (v64.0).
jscher2000
  • Top 10 Contributor
8773 solutions 71728 answers

dr01 said

@jscher2000: Where are the Developer Tools Settings? I can't seem to find them on my Firefox (v64.0).

If you have opened the Developer Tools panel (e.g., Ctrl+Shift+i), it is on the ••• menu:

''dr01 [[#answer-1182131|said]]'' <blockquote> @jscher2000: Where are the Developer Tools Settings? I can't seem to find them on my Firefox (v64.0). </blockquote> If you have opened the Developer Tools panel (e.g., Ctrl+Shift+i), it is on the &bull;&bull;&bull; menu: <img src="https://mdn.mozillademos.org/files/16085/DevTools_LayoutMenu.png">
cor-el
  • Top 10 Contributor
  • Moderator
17537 solutions 158575 answers

Once the developer tools are open, you can open the Settings page via the F1 key.

You can enable the Browser Toolbox via the Developer tools Settings page. Once the developer tools are open, open the Toolbox Options via the F1 key and look under "Advanced Settings":

"Enable browser chrome and add-on debugging toolboxes"
"Enable remote debugging"

This will add the Browser Toolbox item to the Web Developer menu (no restart necessary).

Once the developer tools are open, you can open the Settings page via the F1 key. You can enable the Browser Toolbox via the Developer tools Settings page. Once the developer tools are open, open the Toolbox Options via the F1 key and look under "Advanced Settings": "Enable browser chrome and add-on debugging toolboxes" "Enable remote debugging" This will add the Browser Toolbox item to the Web Developer menu (no restart necessary).