I found this
interesting test via dslreports forums. It tests how efficient your browsers pop-up blocker is. I use Opera, see how yours performs.
As instructed on the website, the most difficult tests are in Bold.
13) Passed *
16) Did not complete (displayed a blank page for some unknown reason)
21) Failed (received an "add bookmark" pop-up)
22) Failed (received a "download file" pop-up)
25) Passed *
All the other tests passed successfully.
* I use a script blocker, used to block ads that use a script to launch them. Works well, but can also block some content on websites.
See how well yours does, it will be interesting to see which browsers built in pop-up blockers perform the best.