mobile-config-firefox/content/compact_addons_manager.css

/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/content/compact_addons_manager.css made available under Mozilla Public License v. 2.0
See the above repository for updates as well as full license text. */

/* Make the installed addons list more compact, title + only */
/* Installed extensions list will be 3-6 columns wide, themes will be 2 columns wide. No effect on recommendations but those can be styled by adding two_column_html_addons.css */
/* Compatible with addon_manage_buttons_without_popup.css */


@-moz-document url-prefix("chrome://mozapps/content/extensions/aboutaddons.html"), url("about:addons"){
  
  :root{ overflow-x: hidden } /* Remove this if it causes horizontal scrolling problems */
  
  @media (min-width:420px){
    #main{ max-width: unset !important; padding-right: 28px; }
    addon-list > section{
      padding: 1em;
      display: grid;
      grid-template-areas: "hd hd" "cd cd";
      grid-auto-columns: 1fr;
      column-gap: 1em;
    }
    
    addon-card .card-contents{ width: unset !important; white-space: initial !important; }
    
    addon-list[type="extension"] .addon-name-container{
      display: grid !important;
      grid-template-areas: "name opt" "name toggle" "name badge";
      grid-row-gap: 6px;
      grid-auto-columns: 1fr 24px;
    }
    .addon-icon{ align-self: center }
    .addon-name-container > .addon-name{ grid-area: name }
    .addon-name-container > .toggle-button{ grid-area: toggle }
    .addon-name-container > .more-options-button{ grid-area: opt }
    .addon-name-container > .addon-badge{ grid-area: badge }
    
    addon-list[type="extension"] .more-options-button{
      margin-inline: 0 !important;
    }
    
    .card-heading-image{
      max-width: calc(100% + 32px);
      object-position: left;
    }
    
    section > h2{ grid-area: hd }
    addon-card{
      padding-bottom: 0px !important;
      padding-top: 0px !important;
      grid-area: auto;
    }
    
    addon-card .addon-description{
      max-height: 3em;
      scrollbar-width: thin;
    }
    
    addon-list[type="theme"] addon-card{
      margin-right: auto;
    }
  }
    
  @media (min-width:640px){
    addon-list[type="extension"] > section{ grid-template-areas: "hd hd hd" "cd cd cd"; }
  }
  @media (min-width:960px){
    addon-list[type="extension"] > section{ grid-template-areas: "hd hd hd hd" "cd cd cd cd"; }
  }
  @media (min-width:1180px){
    addon-list[type="extension"] > section{ grid-template-areas: "hd hd hd hd hd" "cd cd cd cd cd"; }
  }
  @media (min-width:1420px){
    addon-list[type="extension"] > section{ grid-template-areas: "hd hd hd hd hd hd" "cd cd cd cd cd cd"; }
  }
  
  /* Note: addon-card verified and recommended badges are hidden here. They should remain visible in the "manage" addon page though.  */
  addon-card:not([expanded]) .addon-badge-verified,
  addon-card:not([expanded]) .addon-badge-recommended,
  addon-card:not([expanded]) .addon-description,
  addon-card:not([expanded]) .addon-card-message button[action]{ display: none !important; }
  
  addon-list[type="extension"]{ --card-padding: 8px }
 
}

@-moz-document url-prefix("about:addons"){
  :root{ --sidebar-width: 60px !important; }
  #categories{ width: var(--sidebar-width) !important; }
  #categories > .category{
    margin-left: 10px !important;
    -moz-box-pack: center;
  }
  .sidebar-footer-list{ margin-left: 18px !important; }
  .sidebar-footer-label,
  .category > .category-name{ display: none }
}