From my experiences, here are common mistakes that people should not make when browsing the internet but tend to repeat them;
Opening numerous tabs simultaneously in a single browser
Opening many tabs or pages in one web browser on the internet can significantly reduce the computer’s speed and performance. To increase your web surfing speed, I recommend you open tabs that you only need and close unused ones.
Browsing the internet without antiviruses on your gadgets
Using your computer in to browse the internet puts you at a risk of getting virus infections if it lacks ant software antivirus. Ensure you have a working antivirus program at all times before you browse to avoid software malware.
Setting a similar password for all your accounts
Using one password to manage your internet accounts puts you at a great risk of losing key information when one account is hacked or compromised. Use different passwords to secure your different accounts.