I seemed to have lost all my decades of bookmarks on my Mac Firefox browser. Initially i thought it was just the bookmarks toolbar ones, then i realised it was all historical ones as well. If i select "Manage bookmarks", they are all gone If i then select "Restore" followed by "choose file" nothing happens, no option to select anything If i click on the far left had "star icon" and try and search for a bookmark, nothing is there either. The only extention i have enabled is the malewarebytes browser guard Not installed anything else I generally have a lot of tabs open and they all seem to have re-appeared after the last firefox update and unplanned powercut. My account logged in icon is showing, i can still see all my saved passwords etc. Any help would be apreciated, there is literally over 15 years worth i've lost