MacBook Air
After updating my MacBook Air, I am unable to get into most websites, but the most important is that, i am unable to get into my internet banking and I mean all 3 banks, why and how do I uninstall my most recent update?
More details on your MacBook Air are needed.
Update or Upgrade? Updates bring things (apps for instance) up to date; upgrades are complete replacements.
If you updated Safari recently and your problem is there, try another browser,
If you upgraded to Big Sur, reversing that is not recommended and a greater understanding of your machine is needed..