This has been the most insane thing I have had to deal with on firefox, there are some "entries" on my android history (NOT PRESENT ON DESKTOP) and no matter what I do they are still present on history. -deleted all history after removing sync - clear data -uninstall -not a bookmark -removed android from synced devices No matter what the website is still there, hiding "history" from search results hides obviously everything but that's not a solution, keep in mind while synced the website will show under history of my android device but not on my desktop