Mozilla CSS extensions

Mozilla applications such as Firefox support a number of special Mozilla extensions to CSS, including properties, values, pseudo-elements and pseudo-classes, at-rules, and media queries. These extensions are prefixed with -moz-.

• -moz-binding
• -moz-border-bottom-colors
• -moz-border-left-colors
• -moz-border-right-colors
• -moz-border-top-colors
• -moz-box-align
• -moz-box-direction
• -moz-box-flex
• -moz-box-ordinal-group
• -moz-box-orient
• -moz-box-pack

• -moz-context-properties
• -moz-float-edge
• -moz-force-broken-image-icon
• -moz-image-region

• -moz-orient
• -moz-osx-font-smoothing
• -moz-outline-radius
• -moz-outline-radius-bottomleft
• -moz-outline-radius-bottomright
• -moz-outline-radius-topleft
• -moz-outline-radius-topright
• overflow-clip-box
• overflow-clip-box-block
• overflow-clip-box-inline

• -moz-stack-sizing
• :-moz-system-metric(images-in-menus)
• :-moz-system-metric(mac-graphite-theme)
• :-moz-system-metric(scrollbar-end-backward)
• :-moz-system-metric(scrollbar-end-forward)
• :-moz-system-metric(scrollbar-start-backward)
• :-moz-system-metric(scrollbar-start-forward)
• :-moz-system-metric(scrollbar-thumb-proportional)
• :-moz-system-metric(touch-enabled)
• :-moz-system-metric(windows-default-theme)
• -moz-user-focus
• -moz-user-input
• -moz-user-modify
• -moz-window-dragging
• -moz-window-shadow

• -moz-animation [Prefixed version still accepted]
• -moz-animation-delay [Prefixed version still accepted]
• -moz-animation-direction [Prefixed version still accepted]
• -moz-animation-duration [Prefixed version still accepted]
• -moz-animation-fill-mode [Prefixed version still accepted]
• -moz-animation-iteration-count [Prefixed version still accepted]
• -moz-animation-name [Prefixed version still accepted]
• -moz-animation-play-state [Prefixed version still accepted]
• -moz-animation-timing-function [Prefixed version still accepted]
• -moz-appearance

• -moz-backface-visibility [Prefixed version still accepted]
• -moz-background-clip
• -moz-background-origin
• -moz-background-inline-policy [Superseded by the standard version box-decoration-break]
• -moz-background-size
• -moz-border-end [Superseded by the standard version border-inline-end]
• -moz-border-end-color [Superseded by the standard version border-inline-end-color]
• -moz-border-end-style [Superseded by the standard version border-inline-end-style]
• -moz-border-end-width [Superseded by the standard version border-inline-end-width]
• -moz-border-image
• -moz-border-start [Superseded by the standard version border-inline-start]
• -moz-border-start-color [Superseded by the standard version border-inline-start-color]
• -moz-border-start-style [Superseded by the standard version border-inline-start-style]
• -moz-border-start-width [Superseded by the standard version border-inline-start-width]
• -moz-box-sizing [Prefixed version still accepted]

• clip-path [Applying to more than SVG]
• -moz-column-count [Prefixed version still accepted]
• -moz-column-fill [Prefixed version still accepted]
• -moz-column-gap [Prefixed version still accepted]
• -moz-column-width [Prefixed version still accepted]
• -moz-column-rule [Prefixed version still accepted]
• -moz-column-rule-width [Prefixed version still accepted]
• -moz-column-rule-style [Prefixed version still accepted]
• -moz-column-rule-color [Prefixed version still accepted]
• -moz-context-properties

• filter [Applying to more than SVG]
• -moz-font-feature-settings [Prefixed version still accepted]
• -moz-font-language-override [Prefixed version still accepted]
• -moz-hyphens [Prefixed version still accepted]
• -moz-margin-end [Superseded by the standard version margin-inline-end]
• -moz-margin-start [Superseded by the standard version margin-inline-start]
• mask [Applying to more than SVG]

• -moz-opacity
• -moz-outline
• -moz-outline-color
• -moz-outline-offset
• -moz-outline-style
• -moz-outline-width

• -moz-padding-end [Superseded by the standard version padding-inline-end]
• -moz-padding-start [Superseded by the standard version padding-inline-start]
• -moz-perspective [Prefixed version still accepted]
• -moz-perspective-origin [Prefixed version still accepted]
• pointer-events [Applying to more than SVG]

• -moz-tab-size
• -moz-text-align-last
• -moz-text-decoration-color
• -moz-text-decoration-line
• -moz-text-decoration-style
• -moz-text-size-adjust
• -moz-transform [Prefixed version still accepted]
• -moz-transform-origin [Prefixed version still accepted]
• -moz-transform-style [Prefixed version still accepted]
• -moz-transition [Prefixed version still accepted]
• -moz-transition-delay [Prefixed version still accepted]
• -moz-transition-duration [Prefixed version still accepted]
• -moz-transition-property [Prefixed version still accepted]
• -moz-transition-timing-function [Prefixed version still accepted]
• -moz-user-select

• -moz-initial

• button
• button-arrow-down
• button-arrow-next
• button-arrow-previous
• button-arrow-up
• button-bevel
• checkbox
• checkbox-container
• checkbox-label
• checkmenuitem
• dialog
• groupbox
• listbox
• menuarrow
• menucheckbox
• menuimage
• menuitem
• menuitemtext
• menulist
• menulist-button
• menulist-text
• menulist-textfield
• menupopup
• menuradio
• menuseparator
• -moz-mac-unified-toolbar
• -moz-win-borderless-glass
• -moz-win-browsertabbar-toolbox
• -moz-win-communications-toolbox
• -moz-win-glass
• -moz-win-media-toolbox
• -moz-window-button-box
• -moz-window-button-box-maximized
• -moz-window-button-close
• -moz-window-button-maximize
• -moz-window-button-minimize
• -moz-window-button-restore
• -moz-window-titlebar
• -moz-window-titlebar-maximized
• progressbar
• progresschunk
• radio
• radio-container
• radio-label
• radiomenuitem
• resizer
• resizerpanel
• scale-horizontal
• scalethumb-horizontal
• scalethumb-vertical
• scale-vertical
• scrollbarbutton-down
• scrollbarbutton-left
• scrollbarbutton-right
• scrollbarbutton-up
• scrollbar-small
• scrollbarthumb-horizontal
• scrollbarthumb-vertical
• scrollbartrack-horizontal
• scrollbartrack-vertical
• separator
• spinner
• spinner-downbutton
• spinner-textfield
• spinner-upbutton
• statusbar
• statusbarpanel
• tab
• tabpanels
• tab-scroll-arrow-back
• tab-scroll-arrow-forward
• textfield
• textfield-multiline
• toolbar
• toolbarbutton-dropdown
• toolbox
• tooltip
• treeheadercell
• treeheadersortarrow
• treeitem
• treetwisty
• treetwistyopen
• treeview
• window

Gradients

• -moz-linear-gradient
• -moz-radial-gradient

Elements

• -moz-element

Sub-images

• -moz-image-rect()

• -moz-use-text-color (removed in bug 1306214); use currentcolor instead.

• -moz-bg-inset
• -moz-bg-outset
• -moz-bg-solid

• -moz-activehyperlinktext
• -moz-hyperlinktext
• -moz-visitedhyperlinktext
• -moz-buttondefault
• -moz-buttonhoverface
• -moz-buttonhovertext
• -moz-default-background-color
• -moz-default-color
• -moz-cellhighlight
• -moz-cellhighlighttext
• -moz-field
• -moz-fieldtext
• -moz-dialog
• -moz-dialogtext
• -moz-dragtargetzone
• -moz-mac-accentdarkestshadow
• -moz-mac-accentdarkshadow
• -moz-mac-accentface
• -moz-mac-accentlightesthighlight
• -moz-mac-accentlightshadow
• -moz-mac-accentregularhighlight
• -moz-mac-accentregularshadow
• -moz-mac-chrome-active
• -moz-mac-chrome-inactive
• -moz-mac-focusring
• -moz-mac-menuselect
• -moz-mac-menushadow
• -moz-mac-menutextselect
• -moz-menuhover
• -moz-menuhovertext
• -moz-win-communicationstext
• -moz-win-mediatext
• -moz-nativehyperlinktext

• -moz-box
• -moz-inline-block
• -moz-inline-box
• -moz-inline-grid
• -moz-inline-stack
• -moz-inline-table
• -moz-grid
• -moz-grid-group
• -moz-grid-line
• -moz-groupbox
• -moz-deck
• -moz-popup
• -moz-stack
• -moz-marker

• -moz-show-background (default value in quirks mode)

• -moz-button
• -moz-info
• -moz-desktop
• -moz-dialog (also a color)
• -moz-document
• -moz-workspace
• -moz-window
• -moz-list
• -moz-pull-down-menu
• -moz-field (also a color)

• -moz-fixed

• -moz-crisp-edges

• -moz-calc()

• -moz-arabic-indic
• -moz-bengali
• -moz-cjk-earthly-branch
• -moz-cjk-heavenly-stem
• -moz-devanagari
• -moz-ethiopic-halehame
• -moz-ethiopic-halehame-am
• -moz-ethiopic-halehame-ti-er
• -moz-ethiopic-halehame-ti-et
• -moz-ethiopic-numeric
• -moz-gujarati
• -moz-gurmukhi
• -moz-hangul
• -moz-hangul-consonant
• -moz-japanese-formal
• -moz-japanese-informal
• -moz-kannada
• -moz-khmer
• -moz-lao
• -moz-malayalam
• -moz-myanmar
• -moz-oriya
• -moz-persian
• -moz-simp-chinese-formal
• -moz-simp-chinese-informal
• -moz-tamil
• -moz-telugu
• -moz-thai
• -moz-trad-chinese-formal
• -moz-trad-chinese-informal
• -moz-urdu

• -moz-scrollbars-none
• -moz-scrollbars-horizontal
• -moz-scrollbars-vertical
• -moz-hidden-unscrollable

• -moz-center
• -moz-left
• -moz-right

• -moz-anchor-decoration

• -moz-all
• -moz-none

• -moz-min-content
• -moz-fit-content
• -moz-max-content
• -moz-available

• ::-moz-anonymous-block
• ::-moz-anonymous-positioned-block
• :-moz-any
• :-moz-any-link [Matches :link and :visited]
• :-moz-broken
• ::-moz-canvas
• ::-moz-color-swatch
• ::-moz-cell-content
• :-moz-drag-over

• :-moz-first-node
• ::-moz-focus-inner
• ::-moz-focus-outer
• :-moz-focusring
• :-moz-full-screen
• :-moz-full-screen-ancestor
• :-moz-handler-blocked
• :-moz-handler-crashed
• :-moz-handler-disabled
• ::-moz-inline-table

• :-moz-last-node
• :-moz-list-bullet
• :-moz-list-number
• :-moz-loading
• :-moz-locale-dir(ltr)
• :-moz-locale-dir(rtl)
• :-moz-lwtheme
• :-moz-lwtheme-brighttext
• :-moz-lwtheme-darktext

• :-moz-native-anonymous
• :-moz-only-whitespace
• ::-moz-page
• ::-moz-page-sequence
• ::-moz-pagebreak
• ::-moz-pagecontent
• :-moz-placeholder
• ::-moz-placeholder
• ::-moz-progress-bar
• ::-moz-range-progress
• ::-moz-range-thumb
• ::-moz-range-track
• :-moz-read-only
• :-moz-read-write

• ::-moz-scrolled-canvas
• ::-moz-scrolled-content
• ::-moz-scrolled-page-sequence
• ::-moz-selection
• :-moz-submit-invalid
• :-moz-suppressed
• ::-moz-svg-foreign-content

• ::-moz-table
• ::-moz-table-cell
• ::-moz-table-column
• ::-moz-table-column-group
• ::-moz-table-outer
• ::-moz-table-row
• ::-moz-table-row-group
• :-moz-tree-cell
• :-moz-tree-cell-text
• :-moz-tree-cell-text(hover)
• :-moz-tree-checkbox
• :-moz-tree-column
• :-moz-tree-drop-feedback
• :-moz-tree-image
• :-moz-tree-indentation
• :-moz-tree-line
• :-moz-tree-progressmeter
• :-moz-tree-row
• :-moz-tree-row(hover)
• :-moz-tree-separator
• :-moz-tree-twisty

• :-moz-ui-invalid
• :-moz-ui-valid
• :-moz-user-disabled
• ::-moz-viewport
• ::-moz-viewport-scroll
• :-moz-window-inactive
• ::-moz-xul-anonymous-block

• @-moz-document

• -moz-device-pixel-ratio
• -moz-os-version
• -moz-touch-enabled
• -moz-windows-glass

• -moz-alt-content (see bug 11011)

• Chrome-only CSS reference
• Microsoft CSS extensions
• WebKit CSS extensions