Issues with Safari with Maverick

Hi,

I have a few issues with safari at the moment since uploading Maverick and wondered if there is anyone out there who can help.

First of all Safari no longer seems to save its preferences and defaults to its original settings.

We loaded a widget bar at the top but the times on the bar does not track you have to keep reloading the widget bar.

And finally my biggest bugbear is that when I log on to the Tesco.com site to update my internet grocery shopping, I have to keep logging in for each page I visit. I am now forced to do the shopping via my Ipad as it is too frustrating with the IMac at the moment.

Any help you can provide would be gratefully received