This is actually about the "Bookmarks" section in the Homepage. When you long click on a bookmark and select "Remove", it does not display an undo snackbar. Once it has been removed, it is added to the blocklist of things that we do not display on the homepage.
Bug 1902976 Comment 2 Edit History
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This is actually about the "Bookmarks" section in the Homepage. When you long click on a bookmark and select "Remove", it does not display an undo snackbar. Once it has been removed, it is added to the blocklist of things that we do not display on the homepage. I think the task here is to add an undo snackbar when you select "Remove".