I use an Ad Blocker – Ghostery – in FireFox. There are several reasons for this:
- To keep down the tracking. I know that ad-blocking doesn’t really stop tracking. Of course I disable 3rd Party cookies and enable “Tracking Protection”. But I don’t expect that this really stops tracking since there are so many ways around Ad Blockers and Tracking Protection.
- To help prevent Malware infections. There have been many cases of malicious advertisers leaking their malware through ads into systems. Advertisers, including even Google, have been the source of malware attacks since they do not sufficiently vet their advertisers.
- To increase the performance of page loading, since all that Ad Ware and Tracking nonsense is often many times the size of the page itself.
Most of my web experience with Ghostery Enabled is just fine. I can purchase items online on Amazon, Newegg and many other sites. I can read most news sites just fine. Slashdot and many other sites show ads in a way that Ghostery does not block, but that is not intrusive or objectionable.