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Este artigo fornece informaçaõ acerca das alterações no Firefox 70 que irão afetar od programadores. O Firefox 70 é a versão Beta atual do Firefox, e irá ser distribuida no dia 22 de outubro de 2019.
Alterações para os programadores da Web
Ferramentas do programador
- An icon will be displayed next to invalid or unsupported CSS rules in the Rules pane of the Page Inspector (bug 1306054).
Removals
HTML
No changes.
Removals
CSS
- Opacity values like for
opacity
orstop-opacity
can now be percentages (bug 1562086). grid-auto-columns
andgrid-auto-rows
now accept multiple track-size values (bug 1339672).- A number of text-related CSS properties have been enabled by default (bug 1573631):
text-decoration-thickness
.text-underline-offset
.text-decoration-skip-ink
. The default value isauto
, which means that by default underlines and overlines are now interrupted where they would otherwise cross over a glyph.
- The
display
property now accepts two keywords for the inner and the outer display type (bug 1038294, bug 1105868 and bug 1557825). - The
font-size
property now accepts the new keywordxxx-large
. (bug 1553545). - The
:visited
pseudo-class no longer matches<link>
elements, for logic and performance reasons (bug 1572246; see Intent to ship: Make <link> elements always unvisited and [selectors] :link and <link> for more reasoning as to why). - We now support an
auto
value for thequotes
property (bug 1421938). - Stylesheets contained in
<style>
elements are now cached for reuse, to improve performance (bug 1480146). Note that this currently doesn't include stylesheets that contain@import
rules. - The
<ratio>
type now accepts<number>
/<number>
or a single<number>
as a value. (bug 1565562).
Removals
- Retiring support for 3-valued <position> (excluding background)(bug 1559276). See site compat note.
none
is now invalid incounter
/counters
— a change which makes the Level 3 spec match CSS 2.1 bug 1576821).
SVG
No changes.
Removals
JavaScript
- Add support for numeric separators. bug 1435818.
Removals
APIs
- The
back()
,forward()
, andgo()
methods are now asynchronous. Add a listener to the
event to get notification that navigation has completed bug 1563587.popstate
Novas APIs
DOM
- Add
DOMMatrix
,DOMPoint
, etc. support in web workers (bug 1420580).
Eventos DOM
Service workers
Media, Web Audio, and WebRTC
Canvas and WebGL
- We now support
CanvasRenderingContext2D.getTransform()
, and the newer variant ofCanvasRenderingContext2D.setTransform()
that accepts a matrix object as a parameter rather than multiple parameters representing the individual components of the matrix (bug 928150).
Removals
Segurança
No changes.
Removals
Plug-ins
No changes.
Removals
Outros
No changes.
Removals
Alterações para os programadores de extras (add-on)
Alterações de API
Sem alterações.
Removals
Alfetarções de Manifest
Sem alterações.
Removals
Consultar também:
Versões antigas
- Firefox 69 for developers
- Firefox 68 for developers
- Firefox 67 for developers
- Firefox 66 for developers
- Firefox 65 for developers
- Firefox 64 for developers
- Firefox 63 for developers
- Firefox 62 for developers
- Firefox 61 for developers
- Firefox 60 for developers
- Firefox 59 for developers
- Firefox 58 for developers
- Firefox 57 for developers
- Firefox 56 for developers
- Firefox 55 for developers
- Firefox 54 for developers
- Firefox 53 for developers
- Firefox 52 for developers
- Firefox 51 for developers
- Firefox 50 for developers
- Firefox 49 for developers
- Firefox 48 for developers
- Firefox 47 for developers
- Firefox 46 for developers
- Firefox 45 for developers
- Firefox 44 for developers
- Firefox 43 for developers
- Firefox 42 for developers
- Firefox 41 for developers
- Firefox 40 for developers
- Firefox 39 for developers