I use Firefox on 3 devices: - a PC at home (Win 10, FF standard instalation), - an Android phone (Xiaomi Mi 9T) - a PC at work (Win7) with the Firefox portable version. I have the latest, stable, up-to-date versions of Firefox on all my devices. The problem is when I save a bookmark on one of the computers at work or at home, and then the devices synchronize. '''Bookmarks between computers do not remember their position in the bookmark folders''' and are saved in the main folder. I have already performed all the steps based on the instructions in this article, but the problem persists. ([[https://support.mozilla.org/en-US/questions/1270667|https://support.mozilla.org/en-US/questions/1270667]])