Samung Not Singing !

I have a Samsung Laptop which came with Linux already installed. Its about 5 maybe 6 years old and has been brilliant - until today ! I use the Firefox Browser, which I have uninstalled and then installed to try and solve the problem. No luck there. At this point my Firefox loads up BUT the problem is when I go to my Bookmarks and click on one of my links nothing happens apart from the ico twirling. I am a complete novice and am not computer tech savvy.

Any suggestions will be most welcome !

Will it go to ANY website, if you enter the URL manually … say
http://www.google.co.uk

If not, can you open a terminal and post the output from

ping -c 3 google.co.uk

and

ping -c 3 216.58.213.67

Do you know which Linux distribution/version you have installed ?