Fóram Tacaíochta Firefox

When loading certain websites, the images load correctly, but the text is scrambled (see attached image). About 1/3 of the sites I visited today were scrambled, others loaded fine. This just started to happen last week. I tried downloading and installing a new copy of Firefox but it did not fix the problem. I cleared the cache but no luck. This is on an iMac operating on IOS 10.9.5. Any suggestions on how to resolve this issue?

Open pages will no longer close when the X is clicked. And the back arrow will not go back to previous page. This situation has just recently occurred. And just discovered that I am unable to move files back and forth to position them in the order I want.

Com o MacOs High Sierra, em Firefox: "Início", em "Pagina Inicial e novas janelas", coloco Google.pt e não fica gravado esse endereço. Aceita o " Pesquisar com Google ou introduzir endereço" mas deixou de aparecer o página "Google" tal como poderá ver no anexo. Queria abrir o Firefox ou uma nova janela e aparecer a página Google, tal como está no anexo. Tal era possível mas deixou de o ser. Obrigado, Helder Maia