Skip to content
OnMSFT.com
  • Home
  • About
  • Contact
  • Windows
  • Surface
  • Xbox
  • How-To
  • OnPodcast
  • Edge
  • Teams
  • Gaming
Menu
  • Home
  • About
  • Contact
  • Windows
  • Surface
  • Xbox
  • How-To
  • OnPodcast
  • Edge
  • Teams
  • Gaming
  1. Home
  2. News
  3. New Microsoft Edge Dev build (78.0.262.0) is now live with mobile syncing and loads of fixes

New Microsoft Edge Dev build (78.0.262.0) is now live with mobile syncing and loads of fixes

Brad Stephenson Brad Stephenson
September 5, 2019
7 min read

Microsoft, Surface\n

Build 78.0.256.2 may have been delayed last week but all of its new features and changes have now been rolled over into today’s update, build 78.0.262.0, which can now be downloaded for all Edge Insiders within the Dev ring.

\n

The main addition to this build is the added support for data syncing between the PC and mobile versions of the Microsoft Edge browser but there’s a massive list of fixes and other minor changes too.

\n

Here’s the full, long, release notes for today’s build 78.0.262.0 update. These notes also contain all of the changes from the 78.0.256.2 build as well. Entries marked with NEW are those added with 78.0.262.0.

\n

Some other major new functionality includes:

\n

    \n

  • Collections is now available in the Dev Channel!
  • \n

  • Added a button on the address bar to access favorites, as requested by you: https://techcommunity.microsoft.com/t5/Discussions/Top-feedback-summary-for-August-29/m-p/829765.
  • \n

  • Added support for Windows 10’s native Share functionality.
  • \n

  • Enabled the built-in abusive ad blocker that was added to Chromium last year (for more information, see https://blog.chromium.org/2018/11/further-protections-from-harmful-ad.html).
  • \n

  • Added the ability to export Collections to Word.
  • \n

  • Added a management policy to use two separate site lists for IE mode and standalone IE instead of having them share the same list.
  • \n

  • Enabled caret browsing in IE mode windows.
  • \n

  • NEW: To try to prevent scenarios where the browser launches but no webpages will load, it will now attempt to de-elevate itself when it detects that it’s running with administrative privileges.
  • \n

  • NEW: Added UI to communicate that data cleared via Clear Browsing Data will also delete that data on other devices signed in with the same account.
  • \n

  • NEW: Added a management policy to go to an intranet site for a single word typed into the address bar instead of initiating a search.
  • \n

\n

Stability fixes:

\n

    \n

  • Fixed some issues where the browser is unable to load any webpages.
  • \n

  • Fixed an issue where two-finger scrolling on the trackpad sometimes crashes the browser.
  • \n

  • Fixed an issue where the browser crashes shortly after launching.
  • \n

  • Fixed an issue where Edge will crash on startup when used in certain languages.
  • \n

  • Fixed an issue where the browser will crash on Mac when signed in with a work or school account.
  • \n

  • Fixed an issue where Netflix videos don’t play due to a “Missing Component” with error code M7354.
  • \n

  • Fixed an issue where installing extensions from the Microsoft Edge extension store failed with the error “Package is invalid:
  • \n

  • CRX_REQUIRED_PROOF_MISSING”.
  • \n

  • Fixed a crash when opening an Application Guard window.
  • \n

  • Fixed an issue where webpages won’t load in an Application Guard window.
  • \n

  • Fixed an issue where Tracking Prevention causes some websites to fail to load properly.
  • \n

  • Fixed an issue where attempting to navigate forward/back using the swipe gesture in situations where navigation isn’t possible leads to broken scrolling.
  • \n

  • Fixed an issue where the Read Aloud bar sometimes disappears unexpectedly.
  • \n

  • Fixed an issue where two-finger scrolling on the trackpad occasionally stops working.
  • \n

  • Fixed an issue where the first run experience doesn’t properly import data on older versions of Windows.
  • \n

  • Improved the success rate of data importing from other browsers.
  • \n

  • NEW: Improved reliability of Application Guard startup.
  • \n

  • NEW: Improved the success rate of importing data from Chrome.
  • \n

  • NEW: Fixed an issue where extensions were unable to be installed from the Microsoft Edge extension store due to a CRX_REQUIRED_PROOF_MISSING error.
  • \n

  • NEW: Fixed a crash during the first run experience.
  • \n

  • NEW: Fixed an issue where opening an IE mode tab sometimes leads to subsequent IE mode tabs that are opened after the first one crashing upon navigation.
  • \n

  • NEW: Fixed a crash when using Collections.
  • \n

  • NEW: Fixed an issue where websites sometimes hang when loading.
  • \n

  • NEW: Fixed an issue where the browser sometimes crashes after a webpage navigates somewhere.
  • \n

  • NEW: Fixed an issue where PDFs sometimes fail to load properly.
  • \n

  • NEW: Fixed an issue where attempting to delete multiple favorites or history items sometimes failed.
  • \n

\n

Behavior changes:

\n

    \n

  • Improved the contrast between active and inactive tabs and windows for better visibility.
  • \n

  • Fixed an issue where the wrong search provider keyword sometimes appears in the address bar when multiple search providers are installed.
  • \n

  • Fixed an issue where downloaded files sometimes aren’t able to be deleted from the pop-up downloads UI.
  • \n

  • Fixed an issue where the link to go to the site permissions Settings page from the Apps page context menu doesn’t work on Mac.
  • \n

  • Fixed an issue where the Global Media Controls button that came from upstream Chromium is present even when there are no tabs with media on them.
  • \n

  • Fixed an issue where the … menu in some Settings pages (for example, site permissions) opens offscreen.
  • \n

  • Fixed an issue where the PDF toolbar sometimes doesn’t appear.
  • \n

  • Changed the Administrator Mode popup to show in fewer scenarios.
  • \n

  • Fixed an issue where the dialog to restart the browser due to diagnostic data settings changes appears multiple times during a single browsing session.
  • \n

  • Fixed an issue where the active tab upon startup is sometimes a pinned tab instead of a new tab.
  • \n

  • Fixed an issue where images sometimes don’t get saved when exporting a Collection.
  • \n

  • Fixed an issue where images weren’t properly rendering in saved Collections.
  • \n

  • Fixed an issue where first-run options are shown that don’t apply to the current user.
  • \n

  • Fixed an issue where search engines changed by extensions aren’t properly shown in the address bar dropdown.
  • \n

  • Fixed an issue where shortcuts to IE mode sites couldn’t be created on the Taskbar.
  • \n

  • Fixed an issue where the download UI isn’t properly shown in an IE mode tab.
  • \n

  • Fixed an issue where using multiple IE mode tabs in a single session sometimes leads to all the IE mode tabs after the first one not persisting settings set in the first one.
  • \n

  • Fixed an issue where the Find on Page search box is too small for certain window sizes.
  • \n

  • Updated UI in the F12 Dev Tools to properly show Edge’s UA string instead of a generic placeholder.
  • \n

  • Fixed an issue where some strings in the F12 Dev Tools weren’t localized.
  • \n

  • Fixed an issue where using the F12 Dev Tools in some languages displays everything in English instead of the selected language.
  • \n

  • Fixed an issue where profile pictures for work/school account users sometimes are missing.
  • \n

  • Fixed an issue where adding and deleting profiles sometimes leads to an extra profile being left over.
  • \n

  • Fixed an issue where the API to determine if Windows is in S mode returns the wrong value.
  • \n

  • NEW: Fixed an issue where the default search provider doesn’t change when the browser is changed to a language from a region that uses a different default search provider than the current one.
  • \n

  • NEW: Fixed an issue where the feedback screenshot editor’s crop tool doesn’t work with touch.
  • \n

  • NEW: Improved the number of places single sign-on can be used.
  • \n

  • NEW: Fixed an issue where resizing a window with an IE mode tab sometimes doesn’t resize the IE mode tab’s content properly.
  • \n

  • NEW: Fixed an issue where pages are unnecessarily re-translated if the translate popup is dismissed without changing any of the settings.
  • \n

  • NEW: Fixed an issue where the indicator to show that a page has been translated doesn’t appear during any of the subsequent translations if a page is translated multiple times.
  • \n

  • NEW: Fixed some inconsistent wording in the popup that appears when an update is available to install.
  • \n

  • NEW: Fixed an issue where feedback was unexpectedly getting submitted when the enter keyboard key is pressed anywhere on the feedback submission dialog.
  • \n

  • NEW: Fixed an issue where dragging products from certain websites into a collection sometimes results in some of the data not getting added to the collection.
  • \n

  • NEW: Fixed an issue where dragging an item into a collection sometimes breaks the ability to select items in that collection.
  • \n

  • NEW: Fixed an issue where reordering multiple items in a collection also reordered items that weren’t intended to be reordered.
  • \n

  • NEW: Fixed an issue where images from a collection sometimes don’t render properly when sharing them via email.
  • \n

  • NEW: Fixed an issue where highlighting text in PDFs sometimes doesn’t work properly.
  • \n

  • NEW: Fixed an issue where favorites icons weren’t appearing on the favorites management page.
  • \n

  • NEW: Fixed an issue where the window color sometimes doesn’t change when it loses focus.
  • \n

  • NEW: Fixed an issue where tab titles are sometimes hard to read on inactive windows.
  • \n

  • NEW: Fixed an issue where hovering over the tab close button shows an improperly sized button.
  • \n

\n

Removed functionality:

\n

    \n

  • Disabled via a flag the Global Media Control button that was recently added to Chromium.
  • \n

  • Removed the prompt to restart Edge to install an update from Application Guard windows.
  • \n

  • Removed the profile sign-in button on Application Guard windows.
  • \n

  • Removed the default theme alert in the F12 Dev Tools.
  • \n

  • Removed some non-functional context menu items from Reading View.
  • \n

  • Temporarily disabled zoom functionality from the … menu when in Reading View.
  • \n

\n

\n

Are you an Edge Insider? Let us know what you think of the new Microsoft Edge browser in the comments below and then follow us on Twitter for more Edge news.

\n\nFurther reading: Edge Insider, Microsoft, Microsoft Edge

Share this article:
Tags:
Edge Insider Microsoft Microsoft Edge
Previous Article Microsoft reminds Windows gamers that Game Bar exists with quirky new angel ad Next Article Microsoft Launcher 5.8 brings optimized search experience and more to Android users

Related Articles

Microsoft is no longer manufacturing the Windows RT powered Surface 2

February 23, 2026

Microsoft treats Windows Phone owners with extra 20GB of free SkyDrive storage for one year

February 23, 2026

Bing now gives smarter results for home, medical, and school-related searchs

February 23, 2026

Leave a Comment Cancel reply

Your email address will not be published. Required fields are marked *

Recent Posts

  • Microsoft is no longer manufacturing the Windows RT powered Surface 2
  • Microsoft treats Windows Phone owners with extra 20GB of free SkyDrive storage for one year
  • Bing now showcases professional and celebrity Klout scores during search results
  • Bing now lets you search and browse for your friends’ Facebook photos
  • Bing now lets you explore free online courses and helps you find books to read

Recent Comments

No comments to show.

Archives

  • February 2026
  • December 2022
  • November 2022
  • October 2022
  • September 2022
  • August 2022
  • July 2022
  • June 2022
  • May 2022
  • April 2022
  • March 2022
  • February 2022
  • January 2022
  • December 2021
  • November 2021
  • October 2021
  • September 2021
  • August 2021
  • July 2021
  • June 2021
  • May 2021
  • April 2021
  • March 2021
  • February 2021
  • January 2021
  • December 2020
  • November 2020
  • October 2020
  • September 2020
  • August 2020
  • July 2020
  • June 2020
  • May 2020
  • April 2020
  • March 2020
  • February 2020
  • January 2020
  • December 2019
  • November 2019
  • October 2019
  • September 2019
  • August 2019
  • July 2019
  • June 2019
  • May 2019
  • April 2019
  • March 2019
  • February 2019
  • January 2019
  • December 2018
  • November 2018
  • October 2018
  • September 2018
  • August 2018
  • July 2018
  • June 2018
  • May 2018
  • April 2018
  • March 2018
  • February 2018
  • January 2018
  • December 2017
  • November 2017
  • October 2017
  • September 2017
  • August 2017
  • July 2017
  • June 2017
  • May 2017
  • April 2017
  • March 2017
  • February 2017
  • January 2017
  • December 2016
  • November 2016
  • October 2016
  • September 2016
  • August 2016
  • July 2016
  • June 2016
  • May 2016
  • April 2016
  • March 2016
  • February 2016
  • January 2016
  • December 2015
  • November 2015
  • October 2015
  • September 2015
  • August 2015
  • July 2015
  • June 2015
  • May 2015
  • April 2015
  • March 2015
  • February 2015
  • January 2015
  • December 2014
  • November 2014
  • October 2014
  • September 2014
  • August 2014
  • July 2014
  • June 2014
  • May 2014
  • April 2014
  • March 2014
  • February 2014
  • January 2014
  • December 2013
  • November 2013
  • October 2013
  • September 2013
  • August 2013
  • July 2013
  • June 2013
  • May 2013
  • April 2013
  • March 2013
  • February 2013
  • January 2013
  • December 2012
  • November 2012
  • October 2012
  • September 2012
  • August 2012
  • July 2012
  • June 2012
  • May 2012
  • April 2012
  • March 2012
  • February 2012
  • January 2012
  • December 2011
  • November 2011
  • October 2011
  • September 2011
  • August 2011
  • July 2011
  • June 2011
  • May 2011
  • April 2011
  • March 2011
  • February 2011
  • January 2011
  • December 2010
  • November 2010
  • October 2010
  • September 2010

Categories

  • Announcements
  • Deals
  • Developer
  • Editorial
  • Feature
  • Feature stories
  • Hero-post
  • Hotdeals
  • How-to
  • Latest news
  • Microsoft / office 365
  • News
  • Office 365
  • Onpodcast
  • Opinion
  • Our featured post
  • Polls
  • Review
  • Reviews
  • Videos
OnMSFT.com

OnMSFT.com covers Microsoft news, reviews, and how-to guides. Formerly known as WinBeta, we have been your source for Microsoft news since 1998.

Categories

  • Windows
  • Surface
  • Xbox
  • How-To
  • OnPodcast
  • Gaming
  • Edge
  • Teams

Recent Posts

  • Microsoft is no longer manufacturing the Windows RT powered Surface 2
  • Microsoft treats Windows Phone owners with extra 20GB of free SkyDrive storage for one year
  • Bing now showcases professional and celebrity Klout scores during search results
  • Bing now lets you search and browse for your friends’ Facebook photos
  • Bing now lets you explore free online courses and helps you find books to read

Quick Links

  • About OnMSFT.com
  • Contact OnMSFT
  • Join Our Team
© 2010–2026 OnMSFT.com LLC. All rights reserved.
About OnMSFT.comContact OnMSFT