Edge Dev logo against a black background and green lines

Microsoft has released this week’s Edge Dev build, bumping the version to 93.0.926.0. The release comes a day later than the usual Tuesday timeline and brings with it a few new features, including the “much requested” dark mode support for HTML form controls.

The firm detailed the feature in a separate blog post last week and said that that it worked with Google to improve support for automatic theme switching for forms. Developers can choose to restrict dark mode to certain form controls alone – such as just the dropdown box –, as well. The feature will also make it to Chrome on Android starting with version 91, and eventually to Edge on Android as well.

There is also a new Efficiency Mode feature that is rolling out to users, which the firm is currently tight-lipped about. While the first-load screen after the update will mention the feature, the company says that it will provide more details “soon”. Other newly added features include a keyboard shortcut for switching between vertical and horizontal tabs, new Kids Mode themes, and more.

Here is the complete list of features added with this build:

  • Enabled by default the ability to import passwords from a CSV file.
  • Enabled by default the ability to change the font in Immersive Reader.
  • Enabled Kids Mode by default.
  • Added more themes in Kids Mode.
  • Added a keyboard shortcut for toggling between vertical and horizontal tabs layouts.
  • Added a message on the update Settings page to warn when the browser can’t be restarted to install an update because another user on the device has it open.
  • Added a confirmation the first time F12 is pressed that allows users to disable it as an entry point for the Dev Tools. Note that it can be re-enabled or disabled at any time in Settings.
  • Enabled support for management policies from Chromium to control if Insecure Private Network Requests are Allowed, Chromium to control the list of what Insecure Private Network Requests are Allowed For which Urls, and to control if Triple DES is Enabled, which allows/disallows the use of 3DES cipher suites in TLS.

As usual, the build comes with a bunch of bug fixes and reliability improvements. These include reliability improvements that fix random crashes and installation issues. Here’s the list of fixes that have been made to address reliability issues:

  • Fixed a crash on launch.
  • Fixed a crash on shutdown.
  • Fixed an issue where certain webpages crash with a STATUS_BREAKPOINT error.
  • Fixed a hang when opening new tabs or windows.
  • Fixed a crash when sending feedback.
  • Fixed a crash when navigating using certain protocols in IE mode tabs.
  • Fixed an issue where one installation of the browser can sometimes cause another on the same machine to be unable to update.
  • Fixed an issue where the Web Widget is sometimes blank or doesn’t load.

There are also fixes to problems that cause unexpected behavior, such as visual glitches in PWAs, Web Capture tool anomalies. Here is the complete list of what’s improved:

  • Increased the number of PDFs that can be open at once.
  • Fixed an issue where middle-clicking on a folder inside a folder on the favorites bar doesn’t open all of the favorites in that sub-folder in new tabs.
  • Fixed an issue where shortcuts to PWAs are sometimes broken after the browser is updated.
  • Fixed an issue where a sign-in prompt repeatedly appears when opening certain PDFs, and then keeps reappearing, even after the PDF is closed.
  • Fixed an issue where Guided Switch preferences sometimes can’t be edited or deleted.
  • Fixed an issue where dragged vertical tabs don’t follow the mouse cursor properly.
  • Fixed an issue where extensions that were hidden unexpectedly become visible.
  • Fixed an issue where the –start-minimized command line flag doesn’t work.
  • Fixed an issue where Office file downloads sometimes fail.
  • Fixed an issue where Office documents can’t be opened in Kids mode.
  • Fixed an issue where printing multiple pages per sheet sometimes rotates the page unexpectedly.
  • Fixed an issue where the Web Capture toolbar sometimes stays onscreen unexpectedly.
  • Fixed an issue where the browser profile picture sometimes isn’t shown in places it should be.
  • Fixed a visual glitch with extensions in PWAs.
  • Fixed an issue where app info for PWAs or websites installed as apps sometimes is incorrect or gone.
  • Fixed an issue where prices aren’t visible on Collections items that come from shopping sites.
  • Fixed an issue where multiple files can’t be downloaded from a single website while in IE mode.
  • Deprecated the management policy to control if Legacy Same Site Cookie Behavior is Enabled.
  • Obsoleted the management policy to control how the New Tab Page Set the Feed Type.

Lastly, as with every release, the firm has detailed the known issues that users should be aware of. Some of these issues, such as the one with Microsoft Editor, have been present for a while. There are a couple of bugs that are caused by specific security software. Here are all the known issues in this build:

  • Certain extensions such as the Microsoft Editor extension don’t work on Linux. As soon as they’re installed, they crash and are disabled. We’re currently investigating.
  • Users of certain ad blocking extensions may experience playback errors on Youtube. As a workaround, temporarily disabling the extension should allow playback to proceed. See this help article for more details.
  • Some users are still running into an issue where all tabs and extensions immediately crash with a STATUS_INVALID_IMAGE_HASH error. The most common cause of this error is outdated security or antivirus software from vendors like Symantec, and in those cases, updating that software will fix it.
  • Users of the Kaspersky Internet Suite who have the associated extension installed may sometimes see webpages like Gmail fail to load. This failure is due to the main Kaspersky software being out of date, and is thus fixed by making sure the latest version is installed.
  • Some users are still seeing favorites get duplicated. This issue should be reduced now that automatic deduplication has been introduced into Insider channels, but we’re still rolling that out in Stable. We’ve also seen duplication happen when running the manual deduplicator on multiple machines before either machine has a chance to fully sync its changes, so make sure to leave plenty of time in between runs of the deduplicator.
  • Some users are seeing “wobbling” behavior when scrolling using trackpad gestures or touchscreens, where scrolling in one dimension also causes the page to subtly scroll back and forth in the other. Note that this only affects certain websites and seems to be worse on certain devices. This is most likely related to our ongoing work to bring scrolling back to parity with Edge Legacy’s behavior, so if this behavior is undesirable, you can temporarily turn it off by disabling the edge://flags/#edge-experimental-scrolling flag.

Today’s update has just begun rolling out to users, so it could be a while till the release propagates to all systems. When it is available, it should be automatically downloaded and installed by the browser. Alternatively, you can force check for updates through the About Microsoft Edge settings page.