Hi   !

Would you please check this :

3-bar menu => Options => Security => under 'Logins' :

Make sure that 'Remember logins for sites' is checked.

Thanks, I had the same idea as you, but unfortunately, it didn't work. This version of Firefox is a little strange. If I click on a web site with ads, Ad block does not work. If I refresh the screen Ad block does work!

yy0wl said

If I click on a web site with ads, Ad block does not work. If I refresh the screen Ad block does work!

Lately AdBlock Plus has been causing a lot of problems. You'd be way better off with uBlock Origin :

https://addons.mozilla.org/en-US/firefox/addon/ublock-origin/

yy0wl said

Thanks, I had the same idea as you, but unfortunately, it didn't work.

You may be in permanent Private Browsing :

Go to :   3-bar menu => Options => Privacy

Under   ' History' :
Firefox will :   'Use custom settings for history' : make sure   'Always use private browsing mode'   is not selected.
If it is,   uncheck it and restart Firefox.
Close the page.   Any changes you've made will automatically be saved.

Also see : https://support.mozilla.org/en-US/kb/private-browsing-use-firefox-without-history?redirectlocale=en-US&redirectslug=Private+Browsing

Thanks, I'll try it!

Unfortunately not.

yy0wl said

Unfortunately not.

Would you please take a look at this article and see if that helps :

Usernames and passwords are not saved

And also :

How to fix preferences that won't save

Went through both articles and everything seems to be in order. I have the old Firefox data file, is there some way of reinstalling it?