Note: The measures () purpose was previously called frames(), but a few details changed, along with the CSS Working Group chose to rename it to something less confusing.

document.requestStorageAccess().then(

At long last, Firefox 65 now supports the WebP picture format. WebP typically produces files which are 25-34% smaller than equivalent JPEGs or PNGs with exactly the identical image quality, and provides both lossy and lossless compression styles. Smaller files mean faster page loads and performance that is better, so this is a fantastic thing.

CSS environment variables

When you’re finished tweaking your site’s interface working with these tools, our newest Changes panel monitors and outlines all of the CSS modifications you’ve made during the present session, which means you can work out what you did to correct a specific issue, and can copy and paste your repairs back out to a code editor.
Images are great, but what about video? Mozilla, along with industry partners, has been growing the next-generation AV1 video codec, which is now supported in Firefox 65 for Windows. AV1 is almost twice as efficient as H.264 in terms of compression, also, unlike H.264, it’s totally open and royalty-free. Support for additional operating systems will be enabled in future releases.
ol, ul, p
To this end 65:
We have also included an advanced color contrast ratio screen. When using the Accessibility Inspector’s access picker, hovering within the text content of a component displays its colour contrast ratio, even if its background is complicated (for example a gradient or detailed image), in which case it shows a selection of colour contrast values, together with a WCAG score .
Firefox 65 sees these attributes joined by a new friend -- the CSS Flexbox Inspector -- that allows you to readily visualize where your flex containers and items are sitting on the page and how much free space can be found between them, what every bend thing ’s default and final size is, just how much they are being shrunk or increased, and much more.
Well there’s no better way to usher out the very first month of the year than having a new Firefox release. It s winter for a lot of us, but this means more at-home time to install Firefox version 65, and check out some of the fantastic new browser and internet platform attributes we all ’ve included inside. Unless you’d instead be minding your thick coat and heading out to grit the driveway, that is (or even visiting the beach, in the event of some of those Australian chums).

Firefox 65 brings updates to JavaScript/APIs.
We may have included a DOM node and a smooth animation like this:

  • Support for Handoff involving iOS and macOS devices is now available.
  • Preferences for content blocking have been completely redesigned to give individuals greater and more clear control on how Firefox protects them in third party monitoring.
  • The about:functionality dashboard now reports that the memory used by tabs and extensions.
  • WebSockets have been implemented over HTTP/2.
  • Lastly, for Windows administrators, Firefox is currently available as an MSI package along with a classic self-extracting EXE.

    Firefox 65 features noteworthy DevTools improvements.

    Advanced colour contrast ratio

    • When exhibiting stack traces (e.g. in console logs or together with the JavaScript debugger), calls to framework methods are identified and collapsed by default, making it much easier to home in on your code.
    • In precisely the same fashion as native terminals, you can now use reverse lookup to discover entries on your JavaScript console history (F9 (Windows/Linux) or Ctrl + R (macOS) and type a search term, followed by Ctrl + R/Ctrl + S to toggle through outcomes ).
    • The JavaScript console’s $0 dictionary (references the now inspected element on the page) now has autocomplete accessible, so for instance you could type $0. Te to acquire a suggestion of $0. TextContent to reference text content.

    Learn more

    CSS platform improvements

    The web often contains conflicting, non-standard, or markup, and it’s up to us to make sure that pages which work in other browsers work in Firefox.

    We’ve included the steps() CSS animation timing purpose , along with the associated jump-* key words. This permits you to make animations that jump in a series of steps that are equidistant, instead of a smooth animation.
    A number of CSS attributes are added to Gecko in 65. The highlights are described below.

    A good evening for DevTools

    Cartoon: move-across 2s unlimited alternate linear;

    This avoids needing to utilize a mix of window, self, global, or that , depending on where a script is executing (e.g. a webpage, a worker, or Node.js).

  • The FetchEvent thing ’s replacesClientId and resultingClientId possessions are now employed -- allowing you to track the source and destination of a navigation.
  • Now you can specify a referrer coverage on scripts applied to your documents (e.g. via a referrerpolicy feature on components )
  • Finally, to avoid popup spam, Window.open() may now only be called once a user interaction event.

Media: Support for both WebP and AV1, and other developments

The Storage Access API has been enabled by default, providing a mechanism for embedded, cross-origin content to request entry to client-side storage mechanisms it would normally just have access to within an first-party context. This API comes with a few easy methods, hasStorageAccess() and requestStorageAccess(), which check and ask storage access. As an example:

Not all browsers support WebP. It is possible to use the element in your HTML to provide both WebP and traditional image formats, leaving the final choice to the user’s browser. You function images as supported browsers send an Accept: image/webp header when requesting pictures and can also detect WebP service.
In Mozilla, we think that new features of this web platform are often best known with the help of intuitive, visual tools. That’s why our DevTools team has spent getting comments from the area, and assigning new tooling to allow web devs and designers to inspect, edit, understand, and tinker with UI attributes. This drive Resulted in the release of the CSS Grid Inspector, Font Editor, and Shape Path Editor.

Cartoon: move-across 2s infinite alternate steps(5, jump-end);

The Intl.RelativeTimeFormat constructor lets you output strings explaining localized relative times, for easier human-readable time references in web apps.

JavaScript debugging improvements

By Way of Example, to prevent a page break happening in a list or paragraph:
New break-before, break-after, and break-inside CSS properties have been added, along with the now-legacy page-break-* possessions have been aliased into them. These properties are part of this CSS Fragmentation spec, also set how page, column, or region breaks should act before, after, or within a box that is created.

Other additions

  • The MediaRecorder pause and resume occasions are eventually supported in Firefox, as of variation 65.
  • For programmers creating WebGL content, Firefox 65 supports the BPTC and RGTC texture compression extensions.

    The post Firefox 65: WebP service, Flexbox Inspector, fresh tooling & stage upgrades appeared initially on Mozilla Hacks – the Web programmer blog.
    CSS environment variables are currently supported, accessed via env() in stylesheets. These variables are usable in any portion of a house value or descriptor, and are scoped internationally to a particular document, whereas custom houses are scoped to the element(s) they’re declared on. These were originally supplied by the iOS browser to permit programmers to place their material in a safe region of the viewport, i.e., from the area covered by the notch.

    body

    A Few examples, how to sate your appetite:
    .stepped
    CSS environment variables are currently supported, obtained via env() in stylesheets. These variables are usable in almost any part of a house value or descriptor, and are scoped globally to a particular document, whereas tradition houses are scoped to the element(s) they are declared on. These were initially provided from the iOS browser to allow programmers to put their material in a secure region of the viewport, i.e., from the region covered by the elite.
    .smooth

    We have also added an advanced color contrast ratio display. While using the Accessibility Inspector’s access picker, hovering within the text content of an element shows its color contrast ratio, even if its desktop is complex (for instance a gradient or comprehensive image), in which case it reveals a selection of colour contrast values, together with a WCAG rating.

    Readable flows are currently enabled by default, enabling programmers to process data chunk by chunk since it happens over the network, e.g. from a draw () request.

    A Few examples

    At Mozilla, we think that new features of the internet platform are often best known with the support of intuitive, visual tools. This ’s why our DevTools staff has spent the last few years getting feedback and assigning new new tooling to allow web devs and designers to inspect, edit, understand, and tinker with UI attributes. This drive led to the release of the CSS Grid Inspector, Font Editor, and Ridge Course Editor.
    Quite a few CSS attributes have been added in 65 to Gecko. The highlights are described below.

    Fracture -* properties

    Images are great, but what about video? Mozilla, together with industry partners, has been developing the next-generation AV1 video codec, which is now supported in Firefox 65 for Windows. AV1 is almost two times as efficient as H.264 in terms of compression, and, unlike H.264, it’s totally open and royalty-free. Support for additional operating systems will be enabled in future releases.
    New break-before, break-after, and break-inside CSS properties have been added, and also the now-legacy page-break-* possessions are aliased into them. These properties are a part of this CSS Fragmentation spec, also specify how column, or region breaks should behave before, after, or inside a box that is created.

    We can make the animation leap in 5 steps that are equal, like this:
    body
    You may find quite a few of ReadableStream demos on GitHub.

    We ve also several aspects of Firefox

    • Support for Handoff between iOS and macOS devices is currently available.
    • Preferences for articles blocking have been completely redesigned to give individuals greater and more clear control on how Firefox protects them from third party tracking.
    • The about:functionality dashboard reports that the memory used by tabs and extensions.
    • WebSockets have been executed over HTTP/2.
    • Lastly, for Windows administrators, Firefox is currently available as an MSI package in addition to some traditional self-extracting EXE.

    WebExtensions improvements

    .stepped
    Firefox 65 features several DevTools improvements. The highlights are as follows:
    At long last, Firefox 65 now supports the WebP image format. WebP offers compression modes, and produces files which are 25-34% smaller than equal JPEGs or PNGs. Smaller files mean better performance and faster page loads, so this is obviously a fantastic thing.

    break-inside: avoid;

    JavaScript/APIs

    It is possible to use the component on your HTML to offer both WebP and classic image formats, leaving the final choice to the user’s browser. You serve images as appropriate, as encouraged browsers send an Accept: image/webp header when requesting pictures and might detect service on the server-side.

    We’ve added the measures () CSS cartoon timing purpose , along with the related jump-* key words. This allows you to easily make cartoons which jump in a series of equidistant measures, rather than a smooth animation.
    We’ve added some WebExtensions API that was useful features too!
    The Intl.RelativeTimeFormat constructor lets you output strings explaining localized relative times, for simpler human-readable time references in web apps.

    Advanced colour contrast ratio

    • The Interface API now enables extensions to manually command that tab becomes concentrated when the tab is closed. You can read more about the inspiration for this feature on Piro’s blog, in which he discusses it in the context of his Tree Mode Program extension.

    Interoperability

    For example, to prevent a page break occurring inside a paragraph or list:

    CSS environment factors

    The post Firefox 65: WebP service, Flexbox Inspector, new tooling & platform updates appeared initially on Mozilla Hacks - the Web programmer blog.

    Firefox 65 brings updates .

    To this end 65:
    We might have added a smooth animation to a DOM node like this:

    Readable streams

    Firefox 65 also features some nifty JavaScript debugging enhancements:

    A good day for DevTools