Change default browser for Office Add-in for desktop mode to new Chromium browser

Question

Hi Team,

We are working on a project, which uses Office Add-in for both Web and Desktop mode. In desktop mode, the add-in is opening in EDGEHTML (older browser instance is used). How can we change the default browser to new Chromium browser.

Please let me know if any other details required.

Regards,

Praveenkumar Rajan

Answer 1

Hi Praveenkumar

Thank you for contacting Microsoft Open Specifications Support.

Chromium-based Edge is installed on my development computer, but my add-in does not use it

The base browser in Microsoft Edge has changed to Chromium. The older base, called EdgeHTML, is not removed when Chromium-based Edge is installed. Office will still use the EdgeHTML base for add-ins until a build of Microsoft 365 that supports Chromium is installed on the computer. We expect these builds to ship in 2020. They will likely appear in the Insiders channel in the first half of the year.

https://docs.microsoft.com/en-us/office/dev/add-ins/concepts/browsers-used-by-office-web-add-ins?ranMID=24542&ranEAID=msYS1Nvjv4c&ranSiteID=msYS1Nvjv4c-ULUYuW5mnSFaaa5hRoB1xA&epi=msYS1Nvjv4c-ULUYuW5mnSFaaa5hRoB1xA&irgwc=1&OCID=AID2000142_aff_7593_1243925&tduid=%28ir__uof0hdo6ygkftlackk0sohzizm2xiwa1jhzfigq300%29%287593%29%281243925%29%28msYS1Nvjv4c-ULUYuW5mnSFaaa5hRoB1xA%29%28%29&irclickid=_uof0hdo6ygkftlackk0sohzizm2xiwa1jhzfigq300

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HungChun Yu (MSFT)