(1) Don't be greedy (with give-aways, bonuses, tips that sent to their emails through strangers)
(2) Don't over curious (with extensions, add-ons, etc.)
(3) Don't naively give strangers control (partial or full) controls of their devices / wallets, such as remote control (Team Viewer, private keys, seeds, e.g.)
Threats changed over time, but basic strategies from scammers and attackers have never changed.
Thanks @tranthidung
I agree with all you wrote above.
Some extensions can be useful and good like Malwarebytes, Metamask, uBlock...
And people should learn more about protection, as scammers always find new ways to scam people