Cet article fournit des informations au sujet de changements introduits dans Firefox 65 qui vont concerner les développeurs. Firefox 65 a été publié le 29 janvier 2019.
$0 shortcut (references the currently inspected element on the page) now has autocomplete available, so for example you could type $0.te to get autocomplete suggestions for properties like $0.textContent.disabled attributes set on them ({{bug(329509)}}).src attribute of an {{htmlelement("iframe")}} element now causes about:blank to be loaded into it, giving it parity with Chrome and Safari ({{bug(1507842)}}). Previously removing src had no effect on the iframe content.crisp-edges value has now been unprefixed ({{bug(1496617)}}).auto now resolves to auto, rather than two colors ({{bug(1501418)}}).break-* properties have been implemented, and the legacy page-break-* properties have been aliased to them ({{bug(775618)}}):
anywhere value has been implemented ({{bug(1505786)}}).jump-start, jump-end, jump-none, and jump-both — usable inside the steps() timing function — have been implemented ({{bug(1496619)}}). This also coincides with the removal of the frames() timing function, which was the previous way of implementing such functionality, now deprecated.meter, which is now used as the default value for {{htmlelement("meter")}} elements in UA stylesheets. the existing value meterbar is now an alias for meter ({{bug(1501483)}}).progress-bar, which is now used as the default value for {{htmlelement("progress")}} elements in UA stylesheets. the existing value progressbar is now an alias for progress-bar ({{bug(1501506)}}).textarea, which is now used as the default value for {{htmlelement("textarea")}} elements in UA stylesheets. the existing value textfield-multiline is now an alias for textarea ({{bug(1507905)}})user-select: all set on an element no longer overrides other values of user-select set on children of that element. So for example in the following snippet:
<div style="-webkit-user-select: all">All <div style="-webkit-user-select: none">None</div> </div>The
<div> with none set on it is now non-selectable. Previously this value would have been overriden by the all value set on the parent element.contenteditable elements nested inside contenteditable elements are now selectable.user-select now behaves consistently inside and outside shadow DOM.-moz-text value has been removed.layout.css.shape-outside.enabled pref has been removed; {{cssxref("shape-outside")}}, {{cssxref("shape-margin")}}, and {{cssxref("shape-image-threshold")}} can no longer be disabled in about:config ({{bug(1504387)}}).-moz-all, -moz-text, tri-state, element, elements, and toggle. See {{bug(1492958)}} and {{bug(1506547)}}.frames() timing function has been removed ({{bug(1496619)}}).No changes.
2**30 - 2 (~1GB) instead of 2**28 - 1 (~256MB) ({{bug(1509542)}}).NetworkError if the requested content type is a Blob, and the request method is not GET ({{bug(1502599)}}).-moz- prefixed versions of many of the {{domxref("Fullscreen API", "", "", "1")}} features have been deprecated, and will now display deprecation warnings in the JavaScript console when encountered ({{bug(1504946)}}).keyup and keydown events are now fired during IME composition, to improve cross-browser compatibility for CJKT users ({{bug(354358)}}, also seedata property is now an empty string value rather than null ({{bug(1508824)}}).TypeError if a non-valid URL is specified as the first parameter ({{bug(1503276)}}).pause and resume events (and their corresponding event handler properties — {{domxref("MediaRecorder.onpause")}} and {{domxref("MediaRecorder.onresume")}}) were not previously implemented, even though compatibility tables claimed they had been. They have now been implemented ({{bug(1458538)}}, {{bug(1514016)}}).currentTime has been removed ({{bug(1502927)}}).dom.webcomponents.shadowdom.enabled and dom.webcomponents.customelements.enabled prefs have been removed — Shadow DOM and Custom Elements can no longer be disabled in about:config ({{bug(1503019)}}).text event — fired to notify the browser editor UI of IME composition string data and selection range — has been removed ({{bug(1288640)}}).No changes.
No changes.
WebDriver:ElementSendKeys now handles <input type=file> more relaxed for interactability checks, and allows those elements to be hidden without raising a not interactable error anymore. If a strict interactability check is wanted the capability strictFileInteractability can be used ({{bug(1502864)}}).
The window manipulation commands WebDriver:FullscreenWindow, WebDriver:MinimizeWindow, WebDriver:MaximizeWindow, and WebDriver:SetWindowRect have been made more stable ({{bug(1492499)}}). It means that under special conditions they don't cause an infinite hang anymore, but instead timeout after 5s if the requested window state cannot be reached ({{bug(1521527)}}).
WebDriver:ElementClick now correctly calculates the center point of the element to click, which allows interactions with dimensions of 1x1 pixels ({{bug(1499360)}}).
For unexpected alert open errors more informative messages are provided (Bug 1502268).
image/webp) has been added to the standard HTTP Request {{httpheader("Accept")}} header for HTML files ({{bug(1507691)}}).successorId property, which can be used to store/retrieve the ID of the tab's successor.previousTabId, which contains the ID of the previous activated tab, if it is still open.updateProperties object has a new optional property available on it, successorTabId, so can be used to update it.successorTabId is also returned by functions like {{WebExtAPIRef("tabs.get()")}} and {{WebExtAPIRef("tabs.query()")}}.tabs.moveInSuccession() allows manipulation of tab successors in bulk.No changes.
headerURL/theme_frame properties for Webextension themes are now supported on Firefox for Android ({{bug(1429488)}}).{{Firefox_for_developers(65)}}