Firefox for Mac - Version 119.0 (Latest update) Bookmarks Organization within the Sidebar When Sidebar open, I have the Bookmarks organized within Folders, sometimes there are other folders within a main folder… When I click on a Folder, it appears to disappear, leaving a blank space, but the contents are still shown. If I then click on another Folder, the one that disappeared, reappears… but now there is a blank space where I clicked on the second folder… Nothing actually is lost, but the name of the clicked Folder disappears, leaving a blank space… This is strange behaviour. I have Windows running under Parallels and the Windows Firefox still functions correctly without problems. On the Mac Firefox I have tried deleting all Bookmarks and re-importing, but doesn't help. I have also Refreshed Firefox and that does not help either. I do not really wish to delete and re-install the Firefox App. as I have many modifications, extensions, search engines etc. installed. Is this behaviour perhaps a quirk of Version 119.0??? Thanks for any help or advice. Colin