What's New In DevTools (Microsoft Edge 83)

Following the updated Chromium schedule, we are adjusting our schedule for upcoming Microsoft Edge releases and cancelling the Microsoft Edge 82 release. Check out our blog post for more info.

Here are the new features available in the DevTools in Microsoft Edge 83.

Announcements from the Microsoft Edge DevTools team

The following sections are a list of announcements you may have missed from the Microsoft Edge DevTools team. Check out the announcements to try new features in the DevTools, Microsoft Visual Studio Code extensions, and more. To stay up to date on all the latest and greatest features in your developer tools, download the Microsoft Edge preview channels and follow us on Twitter.

Remotely debug Microsoft Edge on Windows 10 or later Devices

The Remote Tools for Microsoft Edge (Beta) app is now available in the Microsoft Store. This app extends the Windows Device Portal. You can connect from Microsoft Edge running on your development machine to a remote Windows 10 or later device and display a list of targets. This list of targets includes all tabs in Microsoft Edge and PWAs open on the Windows device. Use the DevTools on your development machine against a target running on the remote Windows device.

The Remote Tools for Microsoft Edge (Beta) app available in the Microsoft Store

Read our guide for setting up your Windows 10 device and your development machine for remote debugging. Let us know about your remote debugging experience by tweeting or choosing the Send Feedback icon!

New ways to access Settings

There are tons of settings for the DevTools that you are able to customize to make the DevTools look, feel, and work the way you need. In Microsoft Edge 83, accessing Settings in the DevTools is now much easier. Open Settings with the gear icon next to Console alerts and the main menu.

The gear icon opens Settings in the DevTools

You are also able to open Settings from the Main Menu under More tools.

Main Menu > More tools > Settings

Chromium issue #1050855

New and improved infobars

Informational notification bars (infobars) in DevTools now have an improved look and more functionality. In Microsoft Edge 83, infobars are easier to read and provide buttons so you are able to take the relevant action right away.

Infobar for pretty-printing a minified file in Microsoft Edge 83

Chromium issue #1056348

The Color Picker is a GUI in the Elements panel for changing color and background-color declarations. In previous versions of Microsoft Edge, you were not able to navigate the Shades section of the Color Picker with the keyboard.

You are now able to use your keyboard to move the selector in the Shades section of the Color Picker

In Microsoft Edge 83, you are now able to use the keyboard to move the selector in the Shades section of the Color Picker.

Chromium issue #963183

Properties tab now populates after a page refresh

In Microsoft Edge 81 and earlier, the Properties tab in the Elements panel was broken by page refreshes. When you refreshed the page, the Properties tab did not populate the properties of the currently-selected element.

In Microsoft Edge 81 and earlier, the Properties tab was blank after a page refresh

In Microsoft Edge 83, you are now able to display the properties of the currently-selected element after a page refresh in the Properties tab.

In Microsoft Edge 83, the Properties tab displays the properties of the currently-selected element after a page refresh

Chromium issue #1050999

Use the arrow keys to scroll in the Changes tool

The Changes tool tracks any changes you have made to CSS or JavaScript in the DevTools. You are able to use the Changes tool to quickly display all your changes and take those back to your editor/IDE.

To open the Changes tool, select Ctrl+Shift+P in the DevTools to open the Command Menu and type changes. choose and run the Show Changes command to open the Changes tool in the DevTools drawer.

When you have made a change to a minified file, the Changes tool enables you to scroll horizontally to display all of your minified code. Starting in Microsoft Edge 83, you may now scroll horizontally using the arrow keys on your keyboard.

In Microsoft Edge 83, you may scroll horizontally with the arrow keys to display your minified code in the Changes tool

If you use screen readers or the keyboard to navigate around the DevTools, send us your feedback by tweeting at us or choosing the Send Feedback icon!

Chromium issue #963183

Announcements from the Chromium project

The following sections announce additional features available in Microsoft Edge 83 that were contributed to the open source Chromium project.

Emulate vision deficiencies

Open the Rendering tab and use the new Emulate vision deficiencies feature to get a better idea of how people with different types of vision deficiencies experience your site.

Emulating blurred vision

DevTools is able to emulate blurred vision and the following types of color vision deficiencies.

Color Vision Deficiency Details
Protanopia The inability to perceive any red light.
Deuteranopia The inability to perceive any green light.
Tritanopia The inability to perceive any blue light.
Achromatopsia The inability to perceive any color, except for shades of grey (extremely rare).

Less extreme versions of these color vision deficiencies exist, and in fact they are more common. For example, protanomaly is a reduced sensitivity to red light (as opposed to protanopia, which is the complete inability to perceive red light). However, these -omaly vision deficiencies are not as clearly defined: every person with such a vision deficiency is different and may see things differently (being able to perceive more/less of the relevant colors).

By designing for the more extreme simulations in DevTools, your web apps are guaranteed to be accessible to people with protanomaly, deuteranomaly, tritanomaly, and achromatomaly as well.

Send your feedback by tweeting or choosing the Send Feedback icon!

Chromium issue #1003700

Emulate locales

Emulate locales by setting a location in Sensors > Location. Open the Command Menu and type Sensors to access the Sensors tab. After performing these actions, DevTools modifies the current default locale, affecting the following code.

  • Intl.* APIs, for example: new Intl.NumberFormat().resolvedOptions().locale
  • Other locale-aware JavaScript APIs such as String.prototype.localeCompare and *.prototype.toLocaleString, for example: 123_456..toLocaleString()
  • DOM APIs such as navigator.language and navigator.languages
  • The Accept-Language HTTP request header

Note

Updates to navigator.language and navigator.languages are not visible immediately, but only after the next navigation or page refresh. Changes to the Accept-Language HTTP header are only reflected for subsequent requests.

Emulating a locale

To try a demo, navigate to Locale-dependent code example.

Chromium issue #1051822

Cross-Origin Embedder Policy (COEP) debugging

The Network panel now provides Cross-Origin Embedder Policy debugging information.

The Status column now provides a quick explanation of why a request was blocked as well as a link to view the headers of that request for further debugging:

Blocked requests in the **Status** column

The Response Headers section of the Headers tab provides more guidance on how to resolve the issues:

More guidance in the Response Headers section

Send your feedback by tweeting or choosing the Send Feedback icon!

Chromium issue #1051466

New icons for breakpoints, conditional breakpoints, and logpoints

The Sources panel has new icons for breakpoints, conditional breakpoints, and logpoints:

  • Breakpoints (Breakpoint) are represented by red circles.
  • Conditional Breakpoints (Conditional Breakpoint) are represented by half-red half-white circles.
  • Logpoints (Logpoint) are represented by red circles with Console icons.

The motivation for the new icons was to make the UI more consistent with other GUI debugging tools (which usually color breakpoints red) and to make it easier to distinguish between the 3 features at a glance.

Chromium issue #1041830

Use the new cookie-path filter keyword in the Network tool to focus on the network requests that set a specific cookie path.

Check out Filter requests by properties to discover more keywords like cookie-path.

Dock to left from the Command Menu

Open the Command Menu and run the Dock to left command to move DevTools to the left of your viewport.

DevTools docked to the left of the viewport

Note

The Dock to left feature has been available since Microsoft Edge 75, but it was previously only accessible from the Main Menu. The new feature in Microsoft Edge 83 is that you may now access this feature from the Command Menu.

Send your feedback by tweeting or choosing the Send Feedback icon!

Chromium issue #1011679

The Audits panel is now the Lighthouse panel

The DevTools team frequently got feedback from web developers that while it was possible to run Lighthouse from DevTools, when they tried it out they were not able to find the "Lighthouse" panel, so the Audits panel is now the Lighthouse panel.

The Lighthouse panel

Note

The Lighthouse panel provides links to content hosted on third-party websites. Microsoft is not responsible for and has no control over the content of these sites and any data they may collect.

Delete all Local Overrides in a folder

After setting up Local Overrides you may hover on a directory, open the contextual menu (right-click), and choose the new Delete all overrides option to delete all Local Overrides in that folder.

Delete all overrides

Send your feedback by tweeting or choosing the Send Feedback icon!

Chromium issue #1016501

Updated Long tasks UI

A Long Task is JavaScript code that monopolizes the main thread for a long time, causing a web page to freeze.

You have been able to visualize Long Tasks in the Performance panel for a while now, but in Microsoft Edge 83 the Long Task visualization UI in the Performance panel has been updated. The Long Task portion of a task is now colored with a striped red background.

The new Long Task UI

Send your feedback by tweeting or choosing the Send Feedback icon!

Chromium issue #1054447

Maskable icon support in the Manifest pane

Android Oreo introduced adaptive icons, which display app icons in a variety of shapes across different device models. Maskable icons are a new icon format that support adaptive icons, which enable you to ensure that your PWA icon looks good on devices that support the maskable icons standard.

Enable the new Show only the minimum safe area for maskable icons checkbox in the Manifest pane to check that your maskable icon looks good on Android Oreo devices.

Show only the minimum safe area for maskable icons checkbox

Note

This feature launched in Microsoft Edge 81. The updates covered here in Microsoft Edge 83 were not covered in What's New In DevTools (Microsoft Edge 81).

Download the Microsoft Edge preview channels

If you are on Windows or macOS, consider using the Microsoft Edge preview channels as your default development browser. The preview channels give you access to the latest DevTools features.

Note

Portions of this page are modifications based on work created and shared by Google and used according to terms described in the Creative Commons Attribution 4.0 International License. The original page is found here and is authored by Kayce Basques (Technical Writer, Chrome DevTools & Lighthouse).

Creative Commons License This work is licensed under a Creative Commons Attribution 4.0 International License.