Mac problems

[crystal ball]

Over the last few months my Mac has been rejecting websites due to "security cert issues" this seems to be getting worse, also yesterday my email would not open I can access it via BT but its not as user friendly, any ideas ?

 

[Mr Chibs]

Think it’s to do with old browser and old OS.

if you use Firefox, when this warning pops up, you can ask Firefox to ignore it, and carry on.

No idea about email.

 

[crystal ball]

Downloaded Monterey, all well, many thanks