Is an ad blocker safe?
Blocking itself is safe. The risk comes from the extension you install: some ask for permission to read every page you open, and an extension can be sold to another company and change without you knowing.
How do you choose a safe blocker?
Get it from the official extension store, check how many people use it, its rating and when it was last updated, and read the permissions it asks for before you agree.
Stay away from copycats carrying famous names; that’s where most of the harm comes from.
And a blocker built into the browser?
When blocking is part of the browser itself, you don’t install an extension or hand your permissions to a third party.
In m7bok blocking is built in and works from the moment you open it, and it deals with the cookie “Accept” pop-ups too.
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Last updated: 11 October 2026