We have already told you that Microsoft is ready to begin to introduce extension support for Edge in an upcoming Insider release preview build. Now, “Page Analyzer” extension for Microsoft Edge has been seen in the store by WindowsBlogItalia. WindowsBlogItalia also published screenshots for the first Extensions of Edge: Page Analyzer by Voloron.js.
Extension Description in the store reads as:
Page Analyzer helps in improving your website by analyzing some well known best practices, including accessibility using the famous aXe library.
WindowsBlogItalia downloaded and installed it like any other regular app from the store and started it from the start menu as well. There were buttons created on the command bar of the Edge browser unfortunately that were not activated in current Edge Builds.
Build 14284 is assumed to be the first rs1_release build that will include extensions in Edge.Current Insider build is very close to this build number and the Insider fast being really fast nowadays means they are coming this week or next week.
In the store, the extension appears to support ARM processors which means extension support for Windows 10 Mobile may not be that far.