When will the Firefox developers fix the disappearing Bookmarks issue I reported approaching six years ago?

When will the Firefox developers fix the disappearing Bookmarks issue I reported approaching six years ago? I just had another occurrence today and it took quite a while to find the missing Bookmark. I do not remember IE 11 ever having this problem of recurring Favorites disappearing. I was told before that supposedly the reason is because I have a large Bookmarks file but as a researcher I need many Bookmarks. I guess the developers don't think disappearing Bookmarks is a problem that should be fixed! So far, this year, the issue has occurred on: 1/6/2o26, 1/24/2026, 1/24/2026, 2/6/2026, 2/20?/2026, 4/10/2026, 5/17/2026, 5/21/2026, 6/16/2026, and today 7/6/2026. Info about today's occurrence: A Bookmarks folder titled Health which was located originally in: Bookmarks Menu | From Internet Explorer Was found located at: Bookmarks Menu | From Internet Explorer | Government | U.S. | Issues | !Misc (not in alphabetical order). Please resolve without further delay.