i hope to ask in the right way. i got a problem yesterday. Firefox stop working (when i try to go a webpage and/or open settings) nothing happened. i searched here and to be quick it was problem with VCRUNTIME140_1.dll missing. unfortunately before understanding it was enough to copy the file in the directory of Mozilla i decided to uninstall and reinstall firefox and this come the surprise: i have created my profile like for other browsers so i was thinking once re-enter in my profile theme, settings, bookmarks and passwords were restored..... and actually they are but not the actual ones... some 6-months or 1 year ago version.... WHY???

i changed a lot in this period and this is not good for me. luckily i was able to import manually bookmarks as i have backup of all my hard drive did 2 days ago but passwords, themes, settings.... how it happens? it was my mistake in something? i thought sync was useful in this scenario....now i have fear that even if i fix everything next time i will have same problem..... SORRY FOR MY BAD ENGLISH. i hope it was clear what happened to me.