Dev Channel update to 126.0.2578.1 is live.


Welcome back! We released 126.0.2578.1 to the Dev channel! This includes numerous fixes. For more details on the changes, check out the highlights below.

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Added Features:

  • Implemented a close button to halt media playback.

Improved Reliability:

  • Fixed an issue that was causing the browser to crash upon playing the next media file.
  • Fixed an issue that caused the browser to crash when selecting ‘Permissions and Privacy’ from any application in the sidebar.
  • Resolved a problem where browser would crash upon launch.
  • Resolved a problem where clicking the ‘x’ button on the privacy page caused browser to crash.

Changed Behavior:

  • Resolved an issue when triggering the ‘No thanks’ button in the profile pane resulted in the loss of keyboard focus.
  • Fixed an issue by making the circle selection option more prominent under the ‘Send diagnostic data to Microsoft’ section during feedback submission.
  • Fixed an issue where the notification pop-up window was not easily locatable.
  • Resolved an issue where the suggestions for Work and History were still appearing even after using the backspace key.
  • Fixed an issue where the Scroll View did not refresh when expanding a group within vertical tabs. 
  • Fixed an issue that caused an error to appear in the translation pop-up menu after choosing ‘Always translate xx’ and changing to the desired language.
  • Fixed an issue where the background color of the text input box in the Favorites hub was not uniform.
  • iOS: 
    • Resolved a problem where switching tabs would inadvertently change the browser to dark mode, which would persist until the browser was restarted.
    • Fixed an issue that caused the privacy icon in the search box to be misaligned on iOS devices.


See an issue that you think might be a bug? Remember to send that directly through the in-app feedback by heading to the ... menu > Help and feedback > Send feedback and include diagnostics so the team can investigate.

Thanks again for sending us feedback and helping us improve our Insider builds.



3 Replies

@Gouri_Murmu insane that this changelog says that it "resolved a problem where browser would crash upon launch" and right after the browser decided to update itself to this version the browser now crashes when I try to launch it. it shows a white window then immediate crashes. 


edit: managed to fix the crashing after I loaded regular edge and loading the workspace that was loading with edge dev on start. after doing that edge dev was able to load and not crash immediately..

Excellent work, the version 126.0.2578.1 totally unusable, keeps crashing when opening website, so I opt-out dev and back to v125.0.2535.51, now all my cookies are gone :)

This has re-introduced the bug where attempting to open a workspace crashes the browser.

This happened a few releases ago, but was fixed.